Sbc running rich symptoms. I have a new factory GM engine it seems to be running rich.

Sbc running rich symptoms Then when driving the power is reduced and will pop when off throttle. I am at my wits end. -It would seem its running lean, but its really running really rich. It means the motor is running rich. It will burn your eyes after it has ran in the garage for a few minutes. Idle screws wouldn't make it stumble when turned down every time. Timing is set at 32°, fuel pressure is right around 5 psi, spark looks very good. Ive pulled and replaced the plugs and even changed out to the delco temp sender . had a buddy from the dragstrip come down and tune it, After dumping the Nova's gas tank, draining all the lines, and dumping all the fuel out of the carb. Tags: None. Thread starter 95slowhoe; Start date Nov 17, 2010; * If intermittent poor driveability or idle symptoms are resolved by disconnecting the IAC, carefully recheck connections, valve terminal resistance or replace IAC. This will not only lead to a high fuel consumption bill, but it can also cause damage to costly parts like the catalytic converter if you are unlucky. The A/F ratio for ideal combustion is 14. and it leans out at WOT just as much. Running rich is usually not an issue. An engine that is jetted too rich will have combustion temperatures . The exhaust color is usually darker when running rich. The spark is delivered via a mallory dual point. Profile Page. A common trouble code with the Chevy HHR is P0172. Escpecially with the rear idle mixture screws. So I drove the car around the block and I think my carb is way Out of whack. Chevy Blazer. When the problem went completely away, it ran a little lean, I upped the jets until it ran perfect, but it still fouled 3 of my plugs, at that point I went to a hotter plug and now my plugs when you pull them look like new. Here are some other causes of an engine running rich: Fuel injectors stuck in the open position Faulty MAF sensor Bad O2 Sensor Faulty MAP sensor Faulty engine coolant temperature sensor Bad intake The idea is to allow the carburetor to run smaller jets in the primary metering however, now the same problem, but on a SBC, Edelbrock carb, Edelbrock Performer manifold, mild performance cam, long tube headers, The new exhaust does not have O2 Sen. What are the Finally got my new setup on the road with an actual exhaust. The strongest symptom is a strong, Has ran rough for several years. In this case, you can expect your engine to operate in a powerful and efficient This is making me crazy. 7 Flooding on Startup. Send Private Topic View Profile. Followed first start procedure without much trouble. 88@123 6. 050 edelbrock 600cfm (model 1406) I know ive been playing around with my 350 sbc now for about a year and have not had any luck getting it tuned in well, just on normal drives the car runs lean enough to pull a plug out and have it be like new white. You do not have permission to view this gallery. What are the factory setting for a sbc with tri-power? pbr40, Sep 18, 2024. The engine is a custom built 427 c. Joined Dec 4, 2023 Messages 10 Holley Carb Running Rich? Watch This! | Holley Carburetor Secrets | Holley Carb Tuning |We are back at it again to bring you another holley tuning video! Thi What are the symptoms of a car running rich or running lean? When your engine is running rich or lean, your car will let you know. My engine takes longer to start than I think it should. Heads were good, no cracks. Not dogging Holleys, I love them. So rich it will burn your eyes. Watch out for these signs/symptoms in your car because they could mean that too much fuel is entering your engine: 1) Excess Fumes from the exhaust. A lot of times big cammed engine require the throttle blades to be open further than normal at idle which puts the throttle blades past the transition slot. Both conditions can be very harmful to your bike and cause serious damage as well as create an unsafe riding condition. It runs through gass a little fast for my liking. At idle the richness kills your eyes and the plugs get filthy black, I raised the locked out timing to 38 and it was still bad so I raised the timing to 40 degrees and it It means the motor is running rich. 57@125 '72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3. Joined: Aug 1, 2019 Posts: 18. Jump to Latest 19K views On my 95' I had some weird issues with it running really Symptoms. I have to pres accelerator to start it, there is black smoke, very noticeable gasoline odor, rough idle and it often die on D or R. A detailed explanation of an engine running rich starts with an overview of the reason why your engine runs rich. Thread starter brettinator; It may mask the symptoms for a while but the engine will never run at its best. Try them 2 1/4- 2 1/2 turns out from fully seated and go from there. A rich fuel mixture (too much fuel for the amount of air in the cylinder) can cause an engine to load up at idle, foul the spark plugs, and also lack power or run sluggish. Joined: Dec 20, 2008 Posts: 3,851. Holleys are great carburetors, and can be tuned very easily to perform to what ever engine you are running. 8 to 0. Transmission TH-350 with NP205 transfer case. This gallery has 1 photos. 5-3 turns. Therefore, if your engine is running rich, yo Engine looks like it is running too rich. 7 parts air to 1 part fuel (14. Lean Mixture Symptoms - A failed ECT sensor can prevent this change from happening, resulting in a rich-running engine and poor fuel economy. Temp sensor, map, and tps all appear functional, checked with scan tool. Tags 5. Dark coloring, such as heavy black wet or dry deposits, can indicate an overly rich condition, too cold a heat range spark plug, a possible vacuum leak, low compression, overly retarded timing or too large a plug gap. Jun 6, 2010 811 3 0 H-Ville, Texas. Around 10. 7 tbi flooding fuel spark. It ran great all last year and for the first 2 races this year, but the it all of a sudden developed a problem. 5:1 A/F almost all around. My 95 with the TBI 350 is running rich. When I pump the throttle it dips to 11 and then 1967 Chevy Biscayne 2 dr. still runs rich especially before warm up. Spark plugs are black and sooty. Plugs are new and look good. It's a 406 sbc also . This is called pulse width modulation. It starts right away after 2 pumps and when at idle runs rich,. Ok I am really frustrated with this one. There was little to no carbon build-up on the cylinders when I took the heads off. Your engine runs poorly: The sensor affects almost every aspect of engine management. Smokedmaxxx Discussion starter. A rich-running system means that there’s either too much fuel or a lack of oxygen in the air-fuel mixture. Join Date: Aug 2010; Posts: 6464; Share The Sbc im running in the nash (. Things like altitude, air density, and humidity can effect the carburetor function and making the fuel to air mixture rich ( too much fuel ) or lean ( too much air ). I have a set of 3 Rochester carbs on my Model A Coupe and they were burning VERY rich. one thing Ive noticed is if it sits for a few days the tb hangs up as if the butterflies catch on something. Here's what I have and what I have done so far. Additionally, the vehicle's computer, sensing a rich mixture in the exhaust, will set a code for the oxygen sensor that will If the floats are too high, the carburetor will run rich. What causes a P2178 code? The P2178 code typically arises from an imbalance in the air-fuel mixture, indicating that the system is running too rich at idle. I removed front and & carbs, installed block off plates and eventually determined that it was the front carb Try riding with the choke half or full out and this is an example of running rich. Upon using an OBD2 scanner, stored Ever since the engine was built it has always run very rich. If you notice any of these symptoms, you might have an issue with your air-fuel mixture Car running rich symptoms include: Slow acceleration; Strong smell of gas Hi folks - I have a 67 327 running rich at idle. I When I start it up in my garage (door opened of course) it starts making my eyes burn. 57@125 '72 An increase in exhaust emissions may occur. Anyways I scanned his truck with HP Tuners and here's the log from it. Inch and cold can come together if trips are too short and the engine doesn’t get hot enough to get off Understanding Rich Symptoms In Harley Engines. BTW - the idle mixture setting will never cause a motor damage. 8 LTFT Re-set valve lash while the engine was running with a 3/4 turn. munster, Jan 11, 2011. Most important: NO CODES! So that doesn't even help. With that in mind, either too much fuel or not enough air can cause a vehicle to run rich. P0172: Fuel System Too Rich – Bank 1: Frequent Symptoms: Sputtering, Low MPG, MIL Chevy Truck Tech Forums. A common trouble code with the Chevy Malibu is P0172. A bad 95 tahoe tbi. 7:1, which means 14. After the first An engine runs too rich when there’s too much fuel and not enough oxygen. When I started it up and hooked up my Wideband 02 sensor, it showed I was running very rich (10:1 A/F ratio), plugs were black and sooty. Looking for some Just put my motor together and my carb is running very rich. When the engine is running, the air-fuel mixture should be balanced for optimal SBC Running Rich 04-09-2021, 05:55 PM. P0172: Fuel System Too Rich – Bank 1: Frequent Symptoms: Sputtering, Low MPG It means the motor is running rich. Most likely the idle is the main cause. cap, ICM, adjusting timing doesn't improve symptoms, distributor has good 12V It means the motor is running rich. What are the symptoms of a car running rich or running lean? When your engine is running rich or lean, your car will let you know. Small base circle cam, 1 3/4 by 3 inch equal tube headers , I’m running chevron 94 pump gas. On the other hand, if the exhaust is running too lean the ECM may decrease the dwell to 20% (20 ms on and 80 ms off) in order to richen the exhaust. 5:1 compression, runs on 93. Intake is still original spread bore. Here are some common causes of hesitation, bogging, or stumbling on a Quadrajet carburetor: Clogged Jets or Passages : Over time, the carburetor's jets and passages can Right now Im running a summit brand HEI, around 16 degrees initial and mechanical 20 degrees mechanical advance all in around 3k. Joined The internal regulator should drop the pressure down to 60 psi. If you C3 Tech/Performance - Running too rich? - First, a story. When The unburned fuel enters the catalytic converter, causing it to overheat and turn cherry red. My engine is running to lean, or is backfiring on acceleration. Code P0172 may appear on some Chevy vehicles. -I got a P0300 (Random Misfire) that is it. AFR will not come off of 12. 5K views 28 replies 7 participants last post by gfercaks33 Jul 29, 2014. based on the SBC design with a Dart block. A strong smell of gasoline, especially when idling. Chevy Captiva. That truck has enough room for two motors in there, pulling it is a snap. 7 tbi engine with the GM#1227747 ECM. It seemed to be giving my afr erratic readings, back and forth from rich to lean. G. Sniper 550 with fuel control only, until issues sorted then timing control to follow. 8 AFR at idle. I do not seem to have as much power as I should. I have 20 Hg vacuum. I am having a hell of a time trying to get my 350 to run right. 350 th-350 3. The code P0175 - System Too Rich (Bank 2) is the same code only for It is SBC 350 with TBI. I have a a 96 C1500 with the 5. It's not the most complicated OBDII trouble code to diagnose. Last edited by a moderator: Feb 6, 2014. SOLVED: 1993 c1500 5. I've been having some problems with my 406 SBC running smoothly. The best was to describe it is that it's running very rich, but we're running the same carb and jets as last year. What are the symptoms of a carburetor running rich? Regular maintenance and timely attention to changes in your vehicle’s behavior are key to a smooth, efficient, and enjoyable driving experience. While cold with the idle still on the high side it seems smooth and normal. FYI,you do need to adv the base timing to 18 deg but i dont think thats the running rich issue,that going to be more of a carb dialing in/calibration issue These symptoms often indicate problems with the air-fuel mixture or fuel delivery. Your vehicle may struggle with acceleration or face stalling problems. Rich. This means that there’s an excess amount of fuel compared to air entering the combustion chamber. It's not a fueling issue. A common trouble code with the Chevy Suburban is P0172. I was able to get it running better (only slightly less rich) with one turn out of the mixture screws and 17 degrees It means the motor is running rich. 355 sbc-12. Symptoms:-The tach show the rpm barely fluctuating. I have a freshly built SBC 350 with a single 600 cfm Edelbrock carburetor It IS a rich condition that burns the eyes. It's all in the jetting. Physically look at the wires An excessively rich mixture can eventually cause serious engine damage, aside from excessive fuel consumption, as the rich mixture will soon wash the lubricating oil from the cylinders and prematurely wear cylinder bores You wont be able to tune a carb by using 20 % throttle. 350 sbc, pro billet distributor, msd 6 al, sometimes it runs great and sometimes it sputtuers and chugs and runs rough under acceleration. It's running way too rich and no matter what I do I can't seem to correct it. See Also: How to Locate the Correct O2 I have a stock 350 chevy with edelbrock carb w/electric choke. I appreciate all the advice I've received so far and am improving the way it runs but it is still way too rich. New mech. A common trouble code with the Chevy Captiva is P0172. OK, let's examine some things that could contribute to a rich condition. New fuel filter, fuel pump works great. When tuning a bike for the first time, it may be difficult to figure out if your bike is running too rich or too lean. User Info. 1998 Chevy Suburban engine runing too rich. 4L L4, for example, this DTC is set if the average long term fuel trim weighted average value is greater or less than a calibrated value. Air fuel mixture should be from closed 2. Holley publishes a plethora of information for tuning their products. In order to truly tune my carb, I want a better understanding of the symptoms of lean vs the symptoms of rich. 2 there fore I cannot get it to 170 to even try to set iac fuel pressure is at 58-59 on FCC 2. 10-02-17 08:07 PM - Post# 2709587 The symptoms: The truck starts fine when cold or hot. Think I'm running rich or lean. Still running rich. 6:1 CR Mutha Thumpr Cam: 235/249 duration at . However, I would also try running in the idle mixture screws. 3 Running Rich Jump to Latest 10K views 11 replies 6 participants last post by country1911 Nov 22, 2017 Here are the most common symptoms of a bad or failing MAF sensor: Idle Issues– Your Captiva may run rich or lean when idling, or it may also idle erratically. It will run rough, or die at idle, but that's due to lack of fuel, not running rich. Reactions: 99xcss4 and brettinator. If I am facing The conditions we're seeing are basically that it runs rich at all rpms. 36 posts · Joined 2011 Add to quote; Only show this user #1 · Jul 11, 2014. i finally pulled the valve covers and turned the engine over by hand and I had several cam lobes that were flat and not opening the valves. I have installed 268 comps in sbc & bbc and they generally like 18 to even 20 deg base but majority 18 base with a higher total of 36-38 deg with std cast iron heads & not vortecs. HERBERT DYER MEMBER; Running rich is a fuel mixture that is too much fuel than air that can be caused by the following below A bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet The alert was set off on Bank 1. The P2188 code indicates a fuel mixture problem in your vehicle. Vacuum is 14 give or take from 3/4 turn out to closed on all 4 screws When you boost it too much then, it can lead to further issues. Here are the symptoms. (Also have a new fuel pump). 5 1 crane cam #119821 roller little small je blower pistons child This isn't going to be an EGR problem. Chevy Cobalt. I thought it was a vacuum leak but have not been I have a sbc 350 with a edelbrock 1406 and hei dist. BLM is down around 100. There are certain conditions where running rich can be helpful as in cold start, however these conditions change Post: SOLVED: 94 K1500 350 TBI rough running when warm (Topic#347478) tweezak Forum Newbie Posts: 8 Loc: OR Reg: 02-03-14. The following list will help you determine whether your Bike is running rich or lean. JGT. The engine seems to be running rich as the plugs are black and the exhaust is black, it idles for a bit and the idle drops and sometimes comes back, but usually stalls. Running rich 12-10-2020, 07:12 PM. Any help would be appreciated, I'm running out of There are a lot of factor to consider when tuning a carburetor. This is mainly because the throttle body is trying to hold a stable idle by opening and closing the throttle valve. There is an engine code P0300 for random misfire 2. So I drove the car around the block and I think my It's a 406 sbc also . 4. P0172: Fuel System Too Rich – Bank 1: Frequent Symptoms: Sputtering, Low If the exhaust is running too rich the ECM may increase the dwell to 70% (70 ms on and 30 ms off) in order to lean out the exhaust. Thats still running on the low speed. 458/. Jump to Latest 9. A rich condition is when there is not enough air relative to Hey all, I have a 1988 c1500 305ci with long tube headers, a k&n intake, and a holley 670 cfm tbi throttle body. A stuck closed EGR does nothing, a stuck open EGR causes a lean condition. Runs ok, but stinks and plugs getting carboned up quickly. P0172: Fuel System Too Rich – Bank 1: Frequent Symptoms: Sputtering, Low MPG, MIL Sbc running rough, advice needed I had this same problem with my The 383 in my caprice. I run 69's in the primary's on my 350 with a 292H cam and a 750 Holley. Solution #3: If you’re running an aftermarket fuel pump, make sure the fuel pressure isn’t set too high. 458 max liftwhich is about all the Hey Jack, thanks for your comment. Every thing always looks good but I swear you cant stand to be around this car while its idling. 73 Posi. If you are running an internally regulated in-tank pump then there's a problem with the regulator. Jump to Latest '73 - 357 SBC - Muncie M20 - 3. i. 6. Any help would be greatly appreciated. It runs very rich. Physically look at the wires This is a follow up on Jason*'s truck from when he posted a thread about it running rich. A rich condition is when there is not enough air relative to the Symptoms of Retarded Ignition Timing sensing a rich mixture in the exhaust, will set a code for the oxygen sensor that will often appear as a "Check Engine" light. If you notice any of these symptoms, you might have an issue with your air-fuel mixture Car running rich symptoms include: Slow acceleration; Strong smell of gas; Low gas mileage; Backfiring; Popping sound during I have a 96 chevy c1500. Fuel pressure checked at 12psi. I was on 74 main jets before the rebuild. I am getting a sag when I accelerate. Cold starts flawlessly, but idle isn't great and idles very rough when in gear. Chevy S10. Here’s a chart that can give you some clues of Rich vs. The fuel pump is not coming on when I first turn the key on. This code number references a number given to you when you plug your vehicle into an OBDII scanner. Cold Holley Carb Running Rich? Watch This! | Holley Carburetor Secrets | Holley Carb Tuning |We are back at it again to bring you another holley tuning video! Thi I just finished a top end rebuild (Brodix IK200 heads, Performer RPM intake, Lunati 268 Cam) on the SBC 350. The ideal air-fuel ratio for most engines is 14. Specifically, it refers to the system being too rich at idle for Bank 1. fuel pump (on top of new mech fuel pump) New fuel filters (carb and inline, serveral times) Blew out fuel lines Switched fuel feeds between tanks (aux/stock) New gas New plugs (on top of new plugs). Power running too rich . This code number references a number given to you when you plug your truck into an OBDII scanner. The motor may not idle correctly, however. Spark plugs/wires are in decent shape, with the spark plug tips dark with carbon and reeking of gas 3. If it Tuning for a rich 305ci sbc. A strong, pungent smell. My truck is running rich. I also changed the gaskets in the carb. Check engine light warning. I have had no end of troubles from my old girl, ever since my top end rebuild. The two adjustment screws on the front are for air and fuel as you know. It's impossible to start with all four corners 1 1/2 turn out, way too rich. I cannot screw them out more than a half turn otherwise engine will stall from being rich. When your engine runs rich, it’s very common for the check engine light to illuminate on your dash. So if it runs over about 190º then deal with that. Camshaft gong flat will give that symptom if it is an exhaust lobe. I have replaced the spark plugs and wires, fuel injectors, Coils, Mass Flow Sensor, Throttle body and the ECM. I just finished a top end rebuild (Brodix IK200 heads, Performer RPM intake, Lunati 268 Cam) on the SBC 350. It's the holley that is running rich. P0172 3 turns out, you went the wrong way to clear up rich. My guess is they are too far out. this thing runs SO pig rich I cant stand to be in the garage with it running. "PCM was reading the alcohol content of the fuel incorrectly and causing itself a rich condition. Surges at idle, sometimes dies. I have it set 10°btdc the idles at 650 rpm and I 10°btdc the idles at 650 rpm and I set the air fuel screws at the highest vac at 15hg but all seems to idle high and run rich, what am I doing wrong here what else can I do? rev. It is the opposite of a motor running too lean with too much oxygen and not enough gasoline. have replaced everything except the tps, map sensor and throttle body itself, full tune up. Runs worse as it warms up Hey Jack, thanks for your comment. Terms often used are: Stuttering Hesitating Running Rough etc etc. When we fire the motor up cold, it starts right away as if the choke is on (there is no choke), and you can When a car is running rich, it means the engine is injecting too much fuel and too little air for perfect combustion, a rich air-fuel mixture. For instance, the engine control unit (ECU) in every vehicle is primarily My 350 small block is running pretty rich and when idling I get quite a bit of white smoke from the exhaust. Just finished up install yesterday, its running super rich and will not idle. Save Share Reply Quote Like. The OBDII trouble code P0172 - System Too Rich (Bank 1) means that the engine air-fuel mixture is too rich, or there is too much fuel and too little air. Here is what I have tried. The ECU is checked and working properly. 73 If and when you're certain that you've ruled out the power valve thing, and you still have a problem with this carb running rich, something tells me that you're going to have to begin Starts up great runs great smooth idle but it is running rich. Any ideas would be greatly appriciated . Chevy Malibu. 85@112 388 sbc- 11. if it looks okay, fill with fresh fuel,add some carb cleaner ,take it out and drive the wheels off it for about 50 miles! some weight in the box will make it work a little more and pull more Put a Brawler 750 DP on it in the car. Symptoms of a lean condition include rough idling and acceleration, misfiring, and potentially higher NOx emissions due to higher combustion temperatures. 8. 7:1). It seems that the I have a mildly built 350 w/ a 1407 Edelbrock carb. I put a wideband on the exhaust and it shows the engine is running at about 12. Black and sooty is running rich and or running cold. They are jetted rich from the factory. 0 Reply. After the car warms up gray smoke starts to come out on the drivers side exhaust. Apr 13, 2011 #16 ya my younger cousin might be young but he loves learning about mechanical things and I'm glad to help him out. Your vacuum advance isn't hooked up to manifold vacuum, it's hooked up to "time spark port" on the carb. Here's what I've checked: 1. 70@106 125 shot-11. i currently am The P0172 code indicates a rich fuel condition in your engine. -It doesn't idle worth shit. Here are my live data from testerday at 66mph according to scan tool, RPMs 2052. The fumes (carbon Hollley ProSystems XC820 36-6 idle feeds. A common trouble code with the Chevy Tahoe is P0172. I haven't checked fuel pressure. I am working on adjusting a quadrajet on the 1972 402 chevy engine that I recently acquired. 5. I did everything you have done. 1406 carb, performer EPS. Fixed carb jets can get clogged and cause this condition. As rule of thumb, set your fuel pressure to these ranges based on the SBC Running Rich 04-09-2021, 05:55 PM. once engine is warm, the idle is 1000rpm, i'd like to get it lower to 800, seems like when I do, it becomes real rich and wants to stumble, if I Symptoms of Carburetor Running rich. There are a few clear rich fuel mixture effects that any driver can spot. And we built it to be durable. I thought maybe the bad gas fouled the plugs, put new plugs in it same thing. Save Share it should, if it doesnt this is a sign that the carb is still running rich at idle. I've adjusted the carb, but that only helped a little. Thats why i told him about Running too rich – High negative fuel trim corrections can be caused by MAF sensor problems, high fuel pressure, leaking fuel pressure regulator diaphragm, faulty evaporative emissions components, leaking injectors, defective O2 sensors, exhaust leaks/pinholes before the O2 sensor, coolant temp sensor problems, and base engine issues such as low compression Problem: Engine is running rich throughout the rpm band. Timing may cause the engine to run rich but only when it is well-timed. A rich condition is when there is not enough air relative to the fuel in the air/fuel mixture. 7 parts of air to one part of fuel. Chevy Suburban. All O2 sensors are new, new cats, new MPFI system, with the exception of the EGR and MAF sensors, all others are new (aftermarket). SHARE POST #1. P0172 is thrown when the oxygen sensors detect that the air-fuel mixture is too rich. A common trouble code with the Chevy Blazer is P0172. This isn't going to be an EGR problem. Troubleshooting SBC ignition misfire I have basically the same set up as yours. Kevin Ardinger likes this. When it's running rough, does it feel more like a rich bog, a misfire, or a lean studder? A Detailed Explanation of an Engine Running Rich. Motor has been rebuilt and cam selected was the same grind as the original 327/275 hp. Anyways changed spark plugs & the coil pack so far. It is running rich and I have read that folks have that issue with the holley throttle body. P0172: Fuel System Too Rich – Bank 1: Frequent Symptoms: Sputtering Here are the most common symptoms of a bad or failing MAF sensor: Idle Issues– Your Traverse may run rich or lean when idling, or it may also idle erratically. You don’t need to visit a mechanic to check if your car runs rich. 7. Everything was rebuilt 600 miles ago. If it is 35 or so, the WBO2 sensor has failed. Fuel System Too Rich. Still ran rich. 30 over silvolite pistons, 292-501 lift comp cam & lifters, stock valves in 194 heads. Conversely, running rich indicates more fuel than air in the mix. It's Running rough and rich at idle. Take a look at the following 7 common signs indicating that your vehicle is running a rich air-fuel mixture and what you might expect if you With all the symptoms you are saying, my knee jerk reaction is to pull it and inspect it to the last nut and bolt. -And now my catalytic converter is glowing cherry red now. A common trouble code with the Chevy S10 is P0172. The list Stock Vortec Heads Vortec style intake New Radiator Lunati Bracket Master 2 cam (what you all call the RV camit's small, . I don't know those engines very well, but generally speaking I would be looking at the MAP sensor with those symptoms. It's running a Holley Brawler carb. It runs rich , and when on the highway at 65-70 it sputters and you have to give it more gass to get it to smooth out. One issue I had is after doing a warm start, it went WAY lean 20:1 just trying to pull out of the parking lot and was really struggling just to get to another parking spot so I could get out of the way of other cars and stayed lean. 0. Having a cam that requires a high idle will require cutting off the fuel to shut it off. C1 & C2 Corvettes - OT: Holley carb runs very rich after engine is fully warm - I have a new problem with the carburetor on my Cheetah tribute. We built it to have around 370hp and around 400tq, and that's right about where it was. -Acceleration is a joke, 0-30 in 30 seconds. It's not 1980 chevy, '91 SBC 350 block with mild roller CAM, Vortec heads, Holley Sniper EFI with fuel pump in the gas tank. 3. or converters. I'm at a loss as to why my Sniper system is now running very rich. Float level set too high. The computer will also retard the spark if the engine is running too hot. I've had the carb for about 15+ years. Jan 4, 2024 #9 B. I know this sounds crazy but it seems true. BITE_ME. P0172: Fuel System Too Rich – Bank 1: Frequent Symptoms: Sputtering, Low MPG Search this forum p0172, probably best to first check if PCM reading fuel correctly. SHARE POST #11. I'm working on a carbeurated LT1 for a friend and am having a heck of a time figuring out what's wrong with it. They are set factory and are matched carbs. Discussion in 'The Hokey Ass Message Board' started by JGT, Jul 20, 2023. Next thought was the timing was off, it ran long enough to check the timing, timing was fine. Turn the idle mixture screws (one at a time) inward from 1 1/4 and see what that does, it should start stumbling from a lean condition, then back out the idle screw(s) to get the best idle. As Danny88 mentioned, checking the float levels and idle mixture screws is a good place to start. Look at the handheld and observe the AFR value. after it 'uncatches' it wont hang up anymore. A common trouble code with the Chevy Colorado is P0172. It was running rich before the rebuild and is still running rich. Bank 1 indicates it’s located on the side that contains the #1 cylinder. I recently had some machine work done (to fix the bores, cam, intake, exhaust were previously installed) to fix my "original" 360, so I swapped in a stock 360 just to keep my pickup on the road. i have a wideband but dont trust it all that much when its telling my i have a 12. Solution #1: You may have the improper size (cfm) carburetor for your application. If you notice any of these symptoms, you might have an issue with your air-fuel mixture Car running rich symptoms include: Slow acceleration; Strong smell of gas; Low gas mileage; Backfiring Engine Running Rich Symptoms If your car is running rich, you’ll likely experience these symptoms: Low gas mileage. Took it to two shops with no If it's running too hot it will ignite the fuel easily. Just needs to be jetted down. 86 frt IAB and 78 rear IAB (came with 78/70). 7 engine that appears to be running rich and I can't seem to figure out what is causing it at the moment. Float is sinking. Chevy C/K Truck Forum. an easy way to check if its rich or lean is when it feels like its about to die, blip the choke and see if the engine picks up speed or dies. 0ls 150 shot 10. Can't see any leaks around the injectors with the key on engine off. Chevy HHR. So a little background, engine in question is a 383 stroker, comp hydraulic roller cam, comp retrofit roller lifters, comp roller tip rockers, Edelbrock 650 carb, AFR dual plane intake, AFR heads. Sent from my iPhone using Tapatalk When tuning a bike for the first time, it may be difficult to figure out if your bike is running too rich or too lean. I gave it a full tune up, checked fuses and did pretty much all the things the former owner should have been doing all along. P0172: Fuel System Too Rich – Bank 1: Frequent Symptoms: Sputtering, Low Try riding with the choke half or full out and this is an example of running rich. FIX: replace float and reset to factory specs. I have a 1968 350 engine that seems llke it's running rich on just one side (drivers side) of the engine. Chevy Tahoe. Running rich has a host of potential issues as detailed in the article. 66@114 100 shot -10. The carb’s cfm is directly related to your engine’s cubic inches and maximum rpm. Chevy Colorado. 55 posi videos RatONaStick at idle RatONaStick on the road RatONaStick at the track. Many components ensure there is an adequate fuel-air ratio. On a 2016 Chevrolet Equinox L 2. First, it runs very rich (at least I think so). its not in the cable its in the tb. If you notice any of these symptoms, you might have an issue with your air-fuel mixture Car running rich symptoms include: Slow acceleration; Strong smell of gas; Low gas mileage; Backfiring; Popping sound during Therefore, it is no surprise that rough idle will be one of the strongest vacuum leak symptoms. Lean: Rich Symptoms: Poor power output; Starts too easily when cold – requiring little or no choke. Also, you might be running rich because the throttle blades are opened into the main circuit (past the idle circuit). You will smell raw fuel and see black smoke from the exhaust when this occurs. The Sniper thinks it's running lean and therefore adds a lot more fuel. Is the engine shake minor or major? With the installed cam specs, your engine Common Symptoms of an Engine Running Rich #1 – Check Engine Light On. Exhaust has a strong fuel smell. He has tried different This article will explain the causes, symptoms, effects, and how to fix an engine running lean or Rich. A rich fuel mixture contains too much fuel in relation to air. I would love recs for a tuner, module or a convenient way 12-14-22 10:32 AM - Post# 2851251 I am building a 46 chevy truck on an S10 frame with a 1989 chevy 5. And worse, many claims of lean conditions and rich conditions SBC running rich on one side? I'm back again. My engine is running rich. Lean Mixture Symptoms - sbc 671 blower running rich timming at crank 10 tdc dist @ 18 fuel pres is 9lb at reg 1 carb reads 8 other reads 7 plugs are ngk #8 the motor is a sbc 350 shp block 8. A common trouble code with the Chevy Cobalt is P0172. Excess heat, coupled However, edelbrock produces a calibration kit #1487 that has some jets rods and springs if you are running rich or lean. At idle, your distributor is essentially seeing zero vacuum, which removes a bunch of timing and probably makes Technical SBC running super rich. gfercaks33 Discussion starter. I finally rebuilt the carb,new needle and seat checked float levels,metering rods, etc. I've verified all of the normal things that may cause such as the map sensor, ECT. The most common symptom of this problem is black The engine runs at about 195 degrees when warmed up, unless you run for an extended period on the highway. 030 over 350 ) seems like it doesnt want to run as well if i advance the timing - ie turn the distributor counter clockwise. brettinator Newbie. Running rich can lead to various performance issues, including decreased fuel efficiency and increased emissions. I plan to buy TBI rebuild kit but rockauto supply two kits, one for TBI100 & TBI200, the other for TBI220 & TBI295. UncagedShadow New Member. fouls plugs like nobodys business, even tried E3 plugs. Riders may observe an increase in fuel consumption, which can be an immediate Many people will tell you all sorts of band-aid fixes, from running less oil, to running a hotter plug. you state it sits a lot,when it gets driven is it a workout or just putting around!pull the filter from the carb inlet and see if it has filled with crud and possibly bypassed allowing debris into carb. I have now gone to a holley Qjet replacement with mech secondaires and a 2 screw idle mixture. Here is some of the symptops you might notice when your dirt bike is too rich or lean ! Running too rich symptomps In this video I show you what to check if you have a Quadrajet that is flooding or running rich. 0 . I too have the exact same vacuum readings as you described. Looks to me like the O2 sensors are reading right and switching back and forth but it does look like the fuel trims are off. 383 Scat Rotating Assy 9. I have the vacuum advance currently plugged but would like to use it once all is sorted out. His truck is all stock but throwing these codes P0172 and P0175. Initial timing w/out vacuum advance set to 12 deg BTDC, total timing @ 2500RPM is 30 deg. FIX: reset float level to factory specs for your carb. carbking An engine running lean or rich means that the air-fuel ratio in the combustion chamber is not optimal for efficient and complete burning. Member. 181 posts · Joined 2012 Add to quote; Only show this user Re: How to tell if running lean, or rich? Eric, Running lean will cause heat and can cause damage. How do you know if your Running rich symptoms. There When it starts to die, the exhaust gets black and sooty (like its running rich). I have a new factory GM engine it seems to be running rich. Over a short time this will cause the converter to fail. Carb can and will run with all 4 idle air screws turned in all the way. also the ses light has come on twice over the Here are the most common symptoms of a bad or failing MAF sensor: Idle Issues– Your Camaro may run rich or lean when idling, or it may also idle erratically. E85 carb running rich. Hello all, new to this forum and EFI in general. Responds readily to the throttle when cold. I have been able to use the Edelbrock tune kit and manual to get the AFR within a good range for idle and for moderate cruise speeds (up to about 45 mph). Put good gas in it ran rough still. For awhile now, it's been loading up,running rich,won't lean out. All plugs rich looking - black 2. If you observe black smoke from your tailpipe, it’s another sign of a rich fuel mixture linked to this code. This code number references a number given to you when you plug your car into an OBDII scanner. It also explains the E85 carb running rich. I will attach the manual which has a chart of which setting may be best for you. Plugs are wet and black. Realistically, if you wanted to rebuild it, you would already have it out, so look at what you know already: the previous owner said to build the carb, and It means the motor is running rich. . Both are incorrect fixes for plug fouling. The problem seems to only be affecting one side of the engine as cylinders 3 and 5 have sooted plugs. Harley engines experiencing rich-running conditions often exhibit a few noticeable symptoms. If you are running an unregulated pump with no return line you're going to see full pump pressure and the Sniper is not designed to run that way. If the fuel pressure is too high or if you have an injector stuck open, the AFR value will be very low - maybe 8 or 9 indicating a rich condition. STFT BK1 -0. mrrxg oxuy baf lqhbt jpmt ofjczc kbjmya wgnm nujuwk cxrahh