P0171 Turbo

Just going to follow up. Car has around 160K on it. VCDS is also available in the following languages: Fast Links: Shop for VCDS Products from our Store. com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory. I bought it with 51,000 miles on it, and about 12,000 miles later it started making a ticking noise. Regarding your P1257 code, I just don't know how the computer knows there is an over boost condition if it has no way of measuring what the boost actually is. A couple of weeks ago I threw the P0171 lean code. The cooling fan is also running quite often after I turn the car off. P0171 & P0236 codes. Or a vac leak, but normally that would be accompanied with a rough idle. It looks like it comes on when sitting at idle for a bit never came on while driving. P0171 code after installing BMS intake MINI Cooper N18, B48 P0171 code after installing BMS intake - N54Tech. If the problem persists the front oxygen (O2) sensor may need to be replaced. OBD2 Code P0171 Volvo definition: Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). View Profile View Forum Posts Private Message Turbo is the way to go. TowerAuto of Tower Automotive Repair LLC on. Re: K&N Air Intake - Getting System Too Lean Bank 1 & 2 codes P0171 & P0174 Disconnecting the battery will force a relearn, but so will filling the gas tank, so I prefer filling the tank so I don't have to reset a bunch of settings and reindex the auto-up windows. 2014 cruze 1. Code p0171 and p0174. It can sometimes pop off the intake manifold. Search Search. Should I still take it in or just wait for the CEL to come back on?. Todo esto en el mejor ambiente que puedas imaginar. I recently learned subaru has changed the part number. com! We are the oldest and largest V6 Mustang forum on the internet. Checked all hoses replace one I broke. 0L Turbo Powertrain (EJ Series Factory 2. P0171 Subaru Tech Notes: • If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. Similar to a wastegate, this is a spring-actuated valve which releases pressure when you lift off the throttle and no longer need boost from the turbo. Can P0171 System to Lean Bank 1 cause the code P0299-Turbo underboost? I am going now to start check vacum lines for P0171 and the MAS to see how dirty it is. P0171 System Lean FIXED! Welcome to KC Subaru! If this is your first visit and want to take full advantage of this community, please take the time to register. Another Taurus forum I frequent has been having a lot of these codes lately on 2000 and newer models. I searched the forum for an answer but the standard reply for code P0171 lists a number of possible reasons, but no diagnostic information. Edmunds' expert review of the Used 2016 Buick Encore provides the latest look at trim-level features and specs, performance, safety, and comfort. Another Taurus forum I frequent has been having a lot of these codes lately on 2000 and newer models. Vacuum Leaks– With the Buick Regal, one of the most common cause for the P0171 code to show is a vacuum leak. Scribd is the world's largest social reading and publishing site. There is no point posting the same post / thread multiple times staff have a life and can't be expected to be on the forum 24/7. Found no vacuum leaks so I installed a maf9 (i have tried 4 sensors from different stores thinking I may have got a bad part). The cel only pops at idle and the car runs great through the power band. P0171 SAAB Tech Notes If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. 4 Turbo 140bhp, I have an P0171 fault code. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. Some fluctuation during decel is normal, but while driving you should be pretty close to zero. Diagnostic Trouble Code (DTC) P0172 Fuel Trim System Too Rich. Research the 2003 Mazda MazdaSpeed Protege at cars. The code came up P0171 or "system too lean". Step 4 - An exhaust leak will allow fresh air to enter the system on the negative pressure side of an exhaust event, this will cause an oxygen sensor to produce a lean reading. 2014 Cadillac ATS 2. p0171 gemisch bank 1 zu mager Previous post 2010 Porsche Panamera Turbo. VW Check Engine Light. 4 turbo and was wondering on the average mpg that folk are getting out of these. Recently I had been felling the car running Little rough after the Check Engine Light came on I saw the code P0171 and I started doing some testing and noticed that my PCV was leaking VALVE COVER PART# 25198874 amzn. Driving home today and the great engine light in the sky came on. I have a 2002 VW Passat w/ the 1. com te damos la bienvenida y deseamos que te sientas como en casa, aquí podrás encontrar todo lo necesario para tener tu coche a punto y personalizarlo a tu gusto, tenemos secciones de bricos, electrónica, sonido , climatización, etc. Hello my wifes car is a 2010 Acura RDX Turbo K23A1 engine. View Profile View Forum Posts Private Message Turbo is the way to go. Hi All Im having a problem with my Astra J 1. what else could be causing this issue??. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. Subject: Re: P0171 Wed Mar 30, 2016 4:32 pm I have to tell you I just don't get it. Understanding Fuel Trim Some of the most common Fault Codes (DTC's) pertain to fuel trim (rich mixture, lean mixture, etc. Mercedes fehlercode p0171. Is it safe to leave the MAF disconnected and for how long? I need to clean or replace it because of the P0171 code and my car won't pass emission test because the O2 sensor is not ready. Called on star and they did their checks and told me it was P0171 and P0174. Cause: This condition may be caused by a torn positive crankcase ventilation Crankcase Pressure Control Diaphragm. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. Someone please help code desription is "Fuel Trim System Lean (bank one)" and "Fuel Trim System Lean (bank two) so i guess my C5 is running too lean what could be causing this and how do fix the problem? Usually happens ONLY a few minutes after starting her up and idling around the streets. We bought it used at 40,000 miles. Searching on the web for th. By finding the trouble that is causing the P0131 code the other may go away also. I am curious to know if you ever found a solution to those codes. 2nd time in the last 3 months. It ran well enough, and I got it home, scanned it, and found P0171 for lean fuel system. I'm kinda lost on. The cel only pops at idle and the car runs great through the power band. Volkswagen 2. P0171 code definition. 0L Turbo P0171 P0507 Volkswagen 2. Here are the most common ones. The code definitions are a good starting point when determining the cause of the service engine light but where do you go from there? We have a large number of resources to help you repair the problem. Idle Air Control System RPM lower than expected, What did you do about it. Code P0171 and P0300,P0301,P0302,P0304 I have a 03' audi A4 1. It is all here!. Hi, new here, i have code P0171 fuel trim too lean bank 1, have changed o2 sensor, smoke test done and no leaks, breathers are fine and injectors fine, my mechanic is now going to change MAF if this doesn't work we are stumped. P0171: b1s1 o2 sensor. Getting the above code on my scanner. If you’re not the most mechanically inclined, you may need a mechanic to help with this fault. Jump to Latest Follow 1 - 6 of 6 Posts I had the same code after I installed my turbo and it turned out to be a very slight lower intake. My symptoms are: it's "cold blooded" to where I have to "nurse" it when the engine's cold, intermittent rough running at idle, and occasionally (but not often) rough running traveling city streets - up to 45-50 mph. OBD-ii Code P0171 definition: Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). 4L Turbo PCV Issues, Diagnosis, and Solutions - Duration: 10:15. Any help would be app. Typically the code will be triggered by a lean condition in the engine. Today while out enjoying the sun in the 2005 PT TE Convertible, the check engine light came on. P0171 - Is it Turbo Time? 2005 Turbo Lite Convertible. P0171 System Lean FIXED! Alright, so I've got the Suby ready to sell and I've even got a buyer but I've got an issue to get ironed out before handing over the keys. Volvo Cars manufacturing plant in Torslanda, Sweden - Volvo V60, Volvo S80, Volvo V70, Volvo XC70 and Volvo XC90. The normal EGT is in the range of 1000 celsius without driving hard. 8T) I had the same code after I fixed a major leak in hose after turbo. Troubleshooting P0171 Code. After a drive today, a CEL came on and its codes P0171 & P0174. Had trim codes recalibrated and updated engine computer. The P0171 code on a Chevy Cruze will often appear if the fuel injection system is not operating properly. 60 during the day. P0492 (Evap P0171 (lean) P0299 (turbo underboost and P1101 (intake air issue). Reset the code and will watch it again. VW Check Engine Light. Never finding any kind of vac leak, no change. Below you will find the most complete list of Buick trouble codes available. I ckecked short long fuel trim and they were high. Each time it was the injectors and IMO caused by long term use of "bastard gas" (non top tier). engine light on. Infiniti Buyers Guide -- 2018 Infiniti QX30 Premium FWD pricing, mpg, engine, transmission. Hello, I have a 2006 Subaru Outback, 2. Take a look around and see if you can find the vacuum leak. 3 answers & 1 comment. Unlike the P1101 code listed above, the P0171 code can be caused by a lot a Myriad of issues. Possible causes - Faulty front heated oxygen sensor - Ignition misfiring - Faulty fuel injectors - Exhaust gas leaks - Incorrect fuel pressure - Faulty Mass Air Flow (MAF) sensor. The P0171 OBD-II code means that, on the first bank of the engine, the fuel system is running weak or a vacuum leak exists near this side of the engine. 2 AWD with 75,000 KMS that I got recently. I installed an Injen intake last week, but the car has been driven for at least 500 miles with it on and no issues. Now, it's possible you have a vacuum leak on bank one side and that's all of your problem, but check everything out because. You have an air leak after the turbo. 2012 Equinox 2. At Edmunds we drive every car we review. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. txt) or read online for free. No smoke was seen anywhere but the gauge was still showing a large leak. Don't know of this means there was a modification or what. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. If you have a p0171 on a 2011 forester non turbo, replace the b1s1. I have fixed countless of this issue. Someone please help code desription is "Fuel Trim System Lean (bank one)" and "Fuel Trim System Lean (bank two) so i guess my C5 is running too lean what could be causing this and how do fix the problem? Usually happens ONLY a few minutes after starting her up and idling around the streets. I'm at my wits end with this car. Hello my wifes car is a 2010 Acura RDX Turbo K23A1 engine. Running at 2k+ revs it is fine. Said the heck with that, just tightened them all by feel. The other day the Check Engine Soon light came on so I checked the codes and it came up with a P0171 code and I don't know what to do. Cómo Verificar un Mezcla Pobre. P0171 Subaru Tech Notes: • If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. I did put the scanner to it and give me a code P0171 Bank 1 System too lean. P0171 VOLKSWAGEN Tech Notes If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. So whilst waiting for parts to fix my current AC problem, The Money Pit decides to throw me a new and interesting problem. Fixed the MBC and tiny inlet seal and took the catch can out. First, however, I would put on my reading glasses and take a good look, for contamination of the MAF (mass air flow sensor) and spend $2. p0717 code chevy silverado. I just bought it and after approx. P0299 and P0171 are related. doc), PDF File (. The BMW E-chassis and F-chassis codes are obvious. i replaced the MAF sensor and that didn't work. Does anyone have any ideas in what i should check. On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. also make sure air filter is not dirty. I was told it was probably the purge valve. This would also probably cause low boost. Power steering pumps and hoses "these had to be replaced at time of repair of the rack steering problem" Anonymous, NY (2015 Volvo S60 T5 2. To inspect for an exhaust leak, have a helper start the engine and hold the idle at about 1500 rpm, listen for additional exhaust noises. Still no fix and then I replaced a 02sensor and no fix. Box 83041 4827 Kingsway Burnaby, BC V5H 0A4 Canada EXOVCDS Swag: http://1060461. Toyota lists the following "Trouble Areas" for P0171. Bought my used 2011 Chevy Cruze a couple months ago at a certified Mercedes dealership. A quick check under the hood (then the web) shows that I have the problem pictured here on VWForum. Possible Causes: Refer to our Oxygen Sensor Code Diagnosis article for a list of all possible causes. This Turbo actuator fitted to the Freelander 2 and Range Rover Evoque is a very common failure that causes turbo problems and the vehicle to go into limp mode and illuminate the engine management light. 4l non turbo. A lean code or codes indicate that there's too much oxygen in the exhaust. I'm worrying about my son safety. Find INFORMATION About Your Car. It only takes a few drive cycles for the codes to come back in again. I fought the p0171 code for a while until i realized that it also ways seemed to pop after changing my air filter. Seems like it's running fine ,but cannot get anyone to figure out the 172 code rich bank 1. ¿Donde Están el Banco 1 y Banco 2 de Cilindros? Fuel Trim System Lean. The Cruze forum linked below has a lot of info about the 1. Typically, the code will be triggered by a lean condition in the engine. Check all of the vacuum lines. I have spent too much money solving my P0171 - Bank 1 Lean due to bad or incomplete information here. The problem occurs when temps dip below 32°F (0°C). It ran well enough, and I got it home, scanned it, and found P0171 for lean fuel system. 6-liter V6 engine. Hello Everyone, So my awesome Nissan Titan arrived yesterday and it's great. Ok I have had this 2004 Forester 146K miles on it for 3 month and have been trying to figure out this PO171 code. If you could have a real diag. Below you will find the most complete list of Ford trouble codes available. After the faults have been rectified, the manufacturer recommends that trouble codes are erased by using a Scan Tool connected to the data link connector (DLC). If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. Hey everyone. If you’re not the most mechanically inclined, you may need a mechanic to help with this fault. If you have a p0171 on a 2011 forester non turbo, replace the b1s1. When the code says that the fuel system is "too lean," it means that the computer has been adding more and more fuel, which is called Long Term Fuel Trim. Smoke tested intake and pcv system and found no leaks. what else could be causing this issue??. Throttle plate open, turbo spooling making boost/psi, then closed is the throttle plate. 8L auto) with about 35K on the clock. About a month ago I backed out of the drive and the front bumper caught on ice that was sticking up at the edge of my drive way. Recently I had been felling the car running Little rough after the Check Engine Light came on I saw the code P0171 and I started doing some testing and noticed that my PCV was leaking VALVE COVER PART# 25198874 amzn. 0-liter turbo-four engine option that will sit between the 2. This is a 2. These cookies are necessary for the website to function and cannot be switched off in our systems. 4 turbo 140cv avec le même problème, P0171, quelques trous à l'accélération et un sentiment que parfois la voiture ne sait plus où elle en ait avec l injection, comme si la pédale d'accélérateur restait bloquée 2/3 sec en position appuyée. There is no point posting the same post / thread multiple times staff have a life and can't be expected to be on the forum 24/7. Engine running lean due to air leak intake manifold. When turbo-boost is present, the one-way valve in the breather valve. So your car's CEL (Check Engine Light) is on and you had the codes scanned at a local parts store. The P0171 is one of the more common trouble codes. Regarding your P1257 code, I just don't know how the computer knows there is an over boost condition if it has no way of measuring what the boost actually is. Search Search. P0172 Buick Fuel Injection System Too Rich Bank 1. P0171 BMW Tech Notes If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. P0171 SAAB Tech Notes If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. This can be caused by a wide variety of issues, primarily issues with the engine management or fuel systems, and therefore can sometimes be difficult to diagnose. I've had the P0171 code for a long time, the car basically runs fine, idle is fine, and it doesn't miss, but I generally don't push the car. In some Chevy Cruze, Trax, Sonic and Buick Encore with a 1. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. It takes a few minutes for this to clear. On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. I read and cleared the following two codes: P0171 & P00BD. It looks like it comes on when sitting at idle for a bit never came on while driving. Regarding your P1257 code, I just don't know how the computer knows there is an over boost condition if it has no way of measuring what the boost actually is. I have a 00 toyota corolla with p0171. I've had the P0171 code and found two items that required fixing, but the car keeps posting this same code - P0171. O2's set DTCs individual for volt high or low (internal short to power or ground) or heater failure. System Too Lean (Bank 1) What the P0171 code means. Where should I start for diagnostics? I'm going to replace my fuel filter (not sure if it's the 1 or 2 inlet one, I've seen both on 05 330xi's?). I have spent too much money solving my P0171 - Bank 1 Lean due to bad or incomplete information here. Just going to follow up. It is possible that there is a problem with a BARO (barometric pressure) sensor that is reading faulty. 7 parts air to 1 part fuel in the air-fuel mixture, a lean condition exists and code P0171 is triggered. I also don't believe there is any intake leak, but I can check again. Hi, I got this fault code P0171 on my lc 180 which when googled gomes up with 'system to lean (bank1)' The code was cleared about 2 days ago and stayed off but has come back today. My daughter has a 2012 Cruze with the 1. I got the P0171 bank 1 system too low code today, I did a little searching but all I could find is that the o2 sensor might be going bad. P0171 Description of the defect. 0L OBD II & 95–98 2. Hello my wifes car is a 2010 Acura RDX Turbo K23A1 engine. The below link shows how to easily test the turbo pcv valve and the hose attached to it. 4L Turbo PCV Issues, Diagnosis, and Solutions - Duration: 10:15. Now it is back on again, without having traveled to the lower elevation. P0171 Volvo S40; P0171 Volvo S60; During this air test it tomorrow then what does that indicate? If that doesn't solve your problem, move on to some of the you don't have a scanner, and see if it comes back again. Find INFORMATION About Your Car. After doing each one I think OK I got it fixed but drive the. only in idle. Quote Reply. P0171 BUICK Meaning The Engine Control Module controls the air/fuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. If the problem persists the front oxygen (O2) sensor may need to be replaced. Any help would be app. 2014 Cadillac ATS 2. Reason for Volvo S40 P0171 and find the solution for the code Volvo S40 P0171 , we'll give to how to fix Volvo S40 P0171 trouble code problem. also make sure air filter is not dirty. 8T is throwing code P0171 System too lean. 2003 Audi A4 Quattro Turbo. P0171 BMW Tech Notes If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. Usually i am getting P0171 but yesterday I get an misfires. I recently got a P0171 on my 2002 V70 non-turbo, 170K miles. Well, I am finally at my wits end. Still no fix and then I replaced a 02sensor and no fix. N54 Lean Mixture code P0171 on 335i General Tech Support, Tuning Advice, Logs, and Help Me Posts N54 Lean Mixture code P0171 on 335i - N54Tech. We bought it used at 40,000 miles. 4L 4 cylinder engine with front wheel drive. Bank 1 has too much air or not enough fuel. para todos los modelos de opel astra. Subaru WRX / STI 2002-2007 Parts, Upgrades, Turbo - Full Race. Had trim codes recalibrated and updated engine computer. 8 petrol sri. In future, SSDs are expected to grow in their capabilities and likewise use much less power. P0171 - Bank 1 Lean What does it mean? (Generically) Too little fuel or too much air during combustion, according to sensor readings of exhaust gases. Chevy Cruze & Sonic 1. Diagnostic Trouble Code (DTC) P0172. Runs fine until warmed up-then idle will slowly go up to 1450 and then fall back to 800rpm. I have had numerous problems with the car which was purchased new and currently has a bit over 69,000 miles on it. ¿Donde Están el Banco 1 y Banco 2 de Cilindros? Fuel Trim System Lean. This car it's been a totally a nightmare. There are many things that can cause the P0171 trouble code on the Buick Regal. Another trouble spot is the valve cover pressure regulator but that typically causes noticeable idle issues. pdf), Text File (. Hi All Im having a problem with my Astra J 1. Hello Everyone, So my awesome Nissan Titan arrived yesterday and it's great. Dealership wants to play games and being a previous auto tech, I have decided to deal with it myself. P0171, P12A2, P0507, P2279. Updated on January 26, 2019 Now the turbo is on as soon as I start driving on the first gear. Box 83041 4827 Kingsway Burnaby, BC V5H 0A4 Canada EXOVCDS Swag: http://1060461. How to fix 2013 chev Cruze codes P0171 and P1101. Update: Problem resolved! I took the MAF off and gave it a good spray with a cleaner and let it dry. also make sure air filter is not dirty. Where is exactly the MAF sensor located in the 2001 Audi A4 Quatro? I have looked all over the internet, but I was not able to find it. 2002 Jetta 1. I've been driving it, and the CEL did not turn back on. 0t, Loss of power, rough idle, engine shutting off with codes P0011, P0016, P228C, P0171. Master ASE Certified Gasoline/Diesel Technician since 2004. Dealership wants to play games and being a previous auto tech, I have decided to deal with it myself. 7 parts air to 1 part fuel in the air-fuel mixture, a lean condition exists and code P0171 is triggered. We fix P0171 on a regular basis with this simple program. 8T) I had the same code after I fixed a major leak in hose after turbo. 4L Turbo PCV Issues, Diagnosis, and Solutions - Duration: 10:15. Let see what they will say tomorrow. Features of the Circuit. I have had the problem off an. Numbers were the same so ran smoke machine again. Hi, I recently had the Engine Management Light come on & when I put the code tester on It code P0171 came up showing ' System Too Lean ' BANK 1 So, apart from putting an additive In which was a fuel s. To get more info about 2012 Chevy Cruze 14 Codes P0106 P015b P0171 P1101 How , please dont hesitate to come back to our site and subscribe!. 4L turbo CEL P0171 P015B P1101 replaced bank 1&2 o2 sensors MAF sensor and all 4 spark plugs idles at 700rpm - Cars & Trucks question. Take a look around and see if you can find the vacuum leak. If you have a p0171 on a 2011 forester non turbo, replace the b1s1. Books says to torque at 71"-lbs and used a torque wrench then. thanks! Since this light only comes on once every 4-6 months or so, do u think it's likely that there is a leak that would be found using this. However, before the turbo 'kicks in' it's turbine needs to spin very fast, until that happens the turbo does not play a role in boosting the car. This code is triggered by the first downstream (front) O2 sensor. Note: This DTC is very similar to P0174 Buick, and in fact your vehicle may show both codes at the same time. Code P0171 applies to 4-cylinder engines (Bank 1) as they generally have only one bank. My symptoms are: it's "cold blooded" to where I have to "nurse" it when the engine's cold, intermittent rough running at idle, and occasionally (but not often) rough running traveling city streets - up to 45-50 mph. Posted on Mar 05, 2011. 0L Turbo P0171 P0507 Volkswagen 2. To get more info about 2012 Chevy Cruze 14 Codes P0106 P015b P0171 P1101 How , please dont hesitate to come back to our site and subscribe!. Vacuum Leaks- With the Buick Regal, one of the most common cause for the P0171 code to show is a vacuum leak. You have an air leak after the turbo. P0171 is typically a vacuum leak. Books says to torque at 71"-lbs and used a torque wrench then. Some popular models include Jetta, Passat, TDI, Golf, Rabbit and more. 4 Turbo, stayed on my mind all day at work. ho in officina una fiat 500L GPL 1. I'm having trouble with my 325i, it is a 2003 and I can't figure out what the problem is. Also check/change your air filter. I've been driving it, and the CEL did not turn back on. I wasn't planning on throwing any parts at it today. For More Videos Visit Our Site :https://ividbuzz. 8T) Results 1 to 14 of 14 Thread: P0171 System Too Lean Bank 1. Fuel Trim System Too Rich. the 2012 chevrolet sonic has 70 nhtsa complaints for the engine at 55,933 miles average. anytime I get a p0171 on a turbo car, you have a leak somewhere. OBD- II codes P2195 and P0171 appear Get an instant quote for your car Our certified mechanics come to you ・ Backed by 12- month, 12, 000- mile guarantee・ Fair and transparent pricing. - I've been fighting the P0171 and P0174 lean conditions for a while now. The P0171 code could also be caused may be. 2 lt there are no modifications done. P0171 BMW Tech Notes If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. Malfunction Indicator Light (MIL) active; Possible Causes. Someone please help code desription is "Fuel Trim System Lean (bank one)" and "Fuel Trim System Lean (bank two) so i guess my C5 is running too lean what could be causing this and how do fix the problem? Usually happens ONLY a few minutes after starting her up and idling around the streets. Hey guy, I Recently bought Vauxhall' astra 1. Some popular models include Jetta, Passat, TDI, Golf, Rabbit and more. I've got a problem with my Audi 2. Welcome to the Buick Check Engine Light codes page. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. P0171 VOLKSWAGEN Meaning With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. help with p0171 and p1131 codes 3"turbo back exhaust only mod? 2002 subaru wrx has 2 codes that come on pretty quickly after erased p0171 system too lean bank1 and p1131 manufacturer air fuel meteringcar has a 3' turbo back borla exhaust, seems the only mod, i just started dealing with this and nobody seems to have a solid answer besides replacing the o2 sensors then eventually the. El código DTC P0171 es genérico y básicamente nos da a entender que se ha detectado una condición muy baja en el sensor de oxígeno en el banco 1, es decir, hay un exceso de oxígeno en los gases de escape. 0L Turbo Powertrain (EJ Series Factory 2. It runs fine, but I gotta get that light off to pass the smog test. Remember parts stores have employees that have good intentions but they may not have. A fuel system lean condition can be broken down into three subsections: fuel pump performance, fuel quality, and injectors.