Chevy cruze p0171 code

The P0171 error code indicates the engine is running lean. The powertrain control module (PCM) monitors the oxygen content of the exhaust post-combustion. If the Heated Oxygen Sensor (HO2S)...

The most common cause of the P0171 code – and the P0170 and P0173-P0174 codes – is unmetered air entering the combustion system. Most of the time, this happens due to faulty or dirty mass ...The Chevrolet Cruze has a myriad of lights and codes that appear on the dashboard over the years of ownership. Usually, they simply indicate it is time for a routine maintenance, such as oil and fluid, filter, or basic component changes. Sometimes, however, they indicate that something is wrong in the system. One of these is trouble code p0171. This code indicates that the fuel system is ...It is running rough at idle, seems to misfire every few seconds, and has reduced power when accelerating. This following link has some good information, but I am not sure how to diagnose without just buying new parts: Chevy Cruze P1101 and P0171 Trouble Codes | Drivetrain Resource The codes are thrown after it warms up for about …Overview of the causes and fixes of a Chevy Cruze P0299 “Turbo/Super Charger Under Boost.” error code.Read here for more information: https://www.backyardme...I have a 2011 1.4L Eco MT, and used to have a P0420 code. Despite many threads saying otherwise, P0420 does not always indicate a bad catalytic converter. I wanted to discuss the diagnostic process I used and give hope to any Cruze owner with a recurring P0420 code. To diagnose, I used a cheap amazon smoke machine (~$180) and the Torque app on ...To diagnose the P0171 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

Hey Everyone, Starting Saturday night I got my 1st check engine light on my 2011 LT Cruze with just a hair over 70,000 miles on it. I have a Bluetooth OBD2 sensor so I checked the codes and over the last two days I have got P0171, P1101 and just today P0106. The car is at the dealership now and hopefully it gets fixed.About a week ago my 2014 1.4L Cruze was idling rough, lack of power, etc and throwing out codes: P0106, P0171 and P1101. I took it to my local Chevy dealer and they replaced the intake manifold and the valve cover. When I got the Cruze home, the check engine light came back on and is now showing codes P015B, P0171, P1101.2014 cruze 1.4l turbo throwing codes: p0106, p0171, p1101, p2270. there is a hissing coming from the top right of the - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website. ... I have a 2014 Chevy Cruze 1.4 l with codes p1101, p0106, p0171, p2270. ...Symptoms: P0171 + P0174 Chevy Cruze. There aren’t always drivability issues associated with these codes. For most people the first sign that anything is wrong at all is the service engine soon light coming on. Here are the typical symptoms that something is wrong when your Cruze has codes P0174 and P0171.28 May 2019 ... FIX CODE P0420 ON CHEVROLET CRUZE, CHEVY SONIC Catalyst System Efficiency Below Threshold. Electrical Car Repair LIVE•148K views · 0:54 · Go to ....Figured maybe the shop got a bit sloppy, and didn't think much more of it at the time. Next day the check engine light came on. Went to Advance, got it read, and it kicked out P1101 and P0171. Judging from what I've read, this could be MAF, vacuum leak, or others. But, I also found a thread that said these codes kicked out when the oil cap …It is running rough at idle, seems to misfire every few seconds, and has reduced power when accelerating. This following link has some good information, but I am not sure how to diagnose without just buying new parts: Chevy Cruze P1101 and P0171 Trouble Codes | Drivetrain Resource The codes are thrown after it warms up for about 10 minutes.

What does the P0171 code mean? A Code P0171 or system too lean bank 1 means either too much oxygen or too little fuel in the exhaust. This is a ‘lean’ condition or a ‘low fuel trim’ code. The P0171 OBD-II code indicates that the fuel system on the first bank of the engine is weak or that a vacuum leak exists near this side of the engine. A lean state happens …Chevrolet Cruze 2016 2019 1.4L (RPO LE2) Equinox 2018 2020 1.5L (RPO LYX) Malibu 2016 2020 1.5L (RPO LFV) Trax 2019 2019 1.4L (RPO LE2) Volt 2016 2019 1.5L (RPO L3A) GMC Terrain 2018 2020 1.5L (RPO LYX) Involved Region or Country North America, China, Thailand, GM Korea, Middle East, Israel, Europe, Brazil, Chile, Colombia, Peru, South Africa ...I have four codes. P2096, P1101, P0172, and P0101 ... control and fuel system - 1.4L (LDD, LDU, LLU, LUH, LUJ) | Diagnostic Information and Procedures | Miscellaneous | DTC P0171 or P0172 - LUJ. ... CruzeTalk.com forum, news, discussions and the best community for owners to discuss all things related to the Chevy Cruze. Show Less ...By Vlad Samarin, Updated: July 10, 2021. The OBDII trouble code P0171 - System Too Lean (Bank 1) means that the engine air-fuel mixture is too lean, or there is too much air and too little fuel. Driving a car with the code P0171 can cause more damage to the engine over time, as when the engine runs lean, the combustion temperature is higher.May 30, 2019 · I own a 2016 Chevy Cruze Limited LT. After a day long road trip, my check engine light popped on for this first time since getting the car in 2017. It shows code p0171, system too lean bank 1. Autozone said it’s the mass air flow sensor but I know not to trust them. 2011 chevy cruze p0324 p0326 p1101 p00b7 p0171 p0106. I just bought a used 2011 Cruze, 6 speed manual, and had noticed a slight stutter while driving, so I replaced the ignition coil, and spark plugs, and the stutter went away as well as the misfire code, now these new codes popped up and the car has told me it was over heating while driving ...

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2014 Cruze P0420 and P0171 thrown at same time. HI I have a 2014 I4 turbo with lil over 92K miles on it. For the longest time I have had a P0420 code on it . I replaced the front O2 sensor and code cleared for a a couple of days and then it came on again. I had a smoke test done to get the true diagnostic issue and said needed to replace the ...P0300 is a generic OBDII code that can occur with the Chevy Cruze. This code indicates that your car’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, the ...Symptoms: P0171 + P0174 Chevy Cruze. There aren’t always drivability issues associated with these codes. For most people the first sign that anything is wrong at all is the service engine soon light coming on. Here are the typical symptoms that something is wrong when your Cruze has codes P0174 and P0171.P0171 code in 2011 chevy cruze - 2011 Chevrolet Cruze. Posted by Anonymous on Apr 02, 2013. Blair. 7 Answers. SOURCE: alarm goes off for no reason. Check the electrical.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...

Dec 2, 2019 · 2014 Cruze P0420 and P0171 thrown at same time. HI I have a 2014 I4 turbo with lil over 92K miles on it. For the longest time I have had a P0420 code on it . I replaced the front O2 sensor and code cleared for a a couple of days and then it came on again. I had a smoke test done to get the true diagnostic issue and said needed to replace the ... Oct 13, 2021 · I have a 2012 Cruze 1.4L, with about 182,000 miles. For months my car has been idling rough and throwing codes p0171 and p2096. Also cutting out when accelerating sometimes. Shooting a black smoke out the exhaust because though it's a lean condition it's getting too much air and sucking the fuel like candy to compensate. 1 Oct 2020 ... This video pertains to any chevy cruze with a 1.4L turbo. I go through all parts of the PCV system to try and explain most symptoms.2017 Chevy Cruze code P0299 p0101 & p1101. Check engine light is solid (never flashing). I only had p0101 being thrown at me so I replaced the mass airflow sensor & the air filter (which was disgusting) & Now I keep getting the codes: Anyone know what is throwing all 3 codes out?! Maf sensor unplugged and or intake tube is loose.Chances are the cause of the defective light or brake lights circuit on your Chevy Silverado is a simple problem. Moreover, you can blame most of these problems on little or no mai...2013 Chevy Cruze - Runs and idles very rough. Throwing codes P0171, P0299, P0300, and P015B. We've fixed the check valves in the PCV system which were bad, but still have the problem. Also replaced the upper oxygen sensor, but didn't change anything.So, the P0299 code in the Cruze 1.4 Turbo will most likely mean that the turbocharger is not creating the proper pressure and is underperforming. This may happen because of several common failures that this turbocharger is prone to. It may develop wastegate problems, oil or coolant leaks, or just die prematurely with no strong reasons for that.P0016 should be considered an important trouble code to diagnose and repair. The crank and cam sensors work in tandem to produce the ideal air/fuel ratio for your engine. When this timing is off, the engine will typically not run (or barely run) Here are the major symptoms of P0016 in the Cruze: Failure to start. Rattle coming from the motor.P0171 Lean mixture fault diagnosis and repair.In todays video I diagnose and repair a vacuum leak from the cam cover on a Chevy cruise. A common issue with t...Replace the valve cover, PCV is built inside it. Gunvir Singh. 2,013 Satisfied Customers. Master Tech at Kennesaw Auto Tech. Gunvir Singh is online now. My 2012 chevy cruze is giving me a p0171 and p0131 codes. My 2012 chevy cruze is giving me a p0171 and p0131 codes. I have already replaced the oxygen sensors.

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I have a 2016 Cruze 1.4L 2nd Gen LE2 Motor. 6-Speed Manual. It has 61,000 miles and I have the P1101 DTC on it with the check engine light. I cleaned the MAF Sensor and cleared the code and a couple days later the code came right back. New MAF Sensor is $100. I don't want to buy a part that isn't needed.About a week ago my 2014 1.4L Cruze was idling rough, lack of power, etc and throwing out codes: P0106, P0171 and P1101. I took it to my local Chevy dealer and they replaced the intake manifold and the valve cover. When I got the Cruze home, the check engine light came back on and is now showing codes P015B, P0171, P1101.P0171 code on Chevy Cruze 2012 1.4L LT. Hi everyone, I'm trying to diagnose the P0171 code I'm getting that turned on my engine light in my car. I checked the PCV valve first and it doesn't seem like it's pulling in any air, as I know this can be an issue with the cruzes. I noticed my engine air filter housing is broken (see attached ...Intake air temperature sensor #2 location is in mass air flow meter.2014 Chevy Cruze 1.4. Codes p0106, p0171, p0496, p0507, p1101, u0100, b0158, b1325, b010e, u0164, u0073. ... 2012 Chevy Cruze vin 1G1PG5SC8C7306754 OBD codes p0171 p0106 p1101 Fuel pressure 45psi idling very low I feel Also has a massive vacuum leak from valve cover see picture please ...1st Generation Chevrolet Cruze. Gen1 Powertrain. Gen1 1.8L 2011-2016 1.8L PCV, Valve Cover, issues. Jump to ... My 2013 with the 1.8L has thrown the P0171 code "system too lean bank 1". I have the BlueDriver OBDII scan tool (great tool by the way!) and have gone through the most likely causes, MAF sensor, Purge Control valve, O2 sensor, etc ...2018 Honda Clarity Touring PHEV - Forest Green w/Tan interior (wife's car) 2017 Volt LT - Heather Gray; black bow ties, Charcoal VoltShelf 2012 ECO MT (hail totaled 5/8/2017 @103,600 miles - 42.5 MPG (5.5 L/100km)) - Black Granite/Cloth; 814 mile range; Bluetooth Stereo AUX; OEM Fogs w/Chrome Covers; GM Spare tire; VG Shark Fin; Rostra Lumbar Support2012 Cruze 1.4 P1101, P0171, P0507. Tags 2012 cruze p0171 p0507 p1101. Jump to Latest Follow ... CruzeTalk.com forum, news, discussions and the best community for owners to discuss all things related to the Chevy Cruze. Show Less . Full Forum Listing. Explore Our Forums.Chevrolet cruze 2012 p0299 underboost diagnosis Cruze chevy p0171 p1101 chevrolet code p0106 engine eco forums. Cruze p0299. Fabrică de bere enumera surfing p0299 turbo supercharger underboost somnolență sud săpunChevy code p0325 2017 chevy cruze Chevrolet chevy cruze p0299 code solutionCruze p0299. P0496 chevy cruze: [ causes, solution ...

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Chevrolet Cruze Eco is down again because of a P0171 Engine Code. Attributed to a failed PCV system. This video walks through the ULTIMATE fix to the problem...Apr 5, 2019 · 2014 Chevrolet Cruze with a 1.8L engine has a P0171 and a P0300, both of these codes caused by the same component. In this video i'm going to show you how to diagnose a lean condition, but the ... 2013 Cruze LT RS package. 1.4L turbo 111k miles. Codes: P0016 & P0017 & P0171. Just picked this Cruze up 2 days ago, have been reading a lot and just want to make sure I'm on the right track. I don't know the history of this vehicle, the oil was changed right before I got it, but the old sticker was left on and it was about 6k miles over due ...P0171 Help.. 2012 Chevy Cruze 1.4l Turbo 130K. ... Got the p0171 code the other day and after doing some research found out i needed to replace the valve cover. Just got it replaced along with new ac delco plugs. ... CruzeTalk.com forum, news, discussions and the best community for owners to discuss all things related to the Chevy Cruze. …A P1101 code for Chevy Cruze means the Mass Air Flow (MAF) sensor is out of the self-test range. It often indicates a faulty MAF sensor and can be caused by a worn-out or faulty timing chain, faulty actuator, broken tensioner, or even dirty oil levels. First, a look at how the MAF sensor works is essential to understand how the code works.Valve cover / PCV valve replacement instructions to correct engine error codes P0171 & P1101 on a 2013 Chevy Cruze 1.4L turbo.Feb 27, 2023 · The P0171 code is triggered when the air-to-fuel ratio of your vehicle is too lean. The PCM receives signals from the oxygen sensors in your engine bay and adjusts the air and fuel mix accordingly. The P0171 code is usually accompanied by the P0170 code as this simply states that a fuel trim anomaly has been detected. 152 posts · Joined 2012. #1 · Aug 8, 2015 (Edited) I got a check engine light and code p0171,p1101.I took it to the dealer and they want 300.00+ to do a fuel system clean ?? This don't seem like my issue when searching these codes.My cruze is a 2013 with around 40k.What should I look for to get this fixed ? ….

Code Number Code Description Related Codes; P0171: System Too Lean (Bank 1) P1101 - Intake Air Flow System Performance P2097 - Post Catalyst Fuel Trim System High Limit P2277 - Barometric Pressure ...Symptoms of a P00B7 code. When a P00B7 Chevy code sets, you may notice that the radiator fans are running at high speed at all times when the engine is running. This is due to the fact that the ECM has detected a large enough difference in temperature between the ECT and RCT to conclude that coolant flow is too low, so it switches the radiator ...I have code p0097 and p11c2 on my 2013 Chevy Cruze. I have changed the mass airflow sensor twice and have changed the air filter. ... I have a 2017 Chevy Cruze it has had trouble idling and with acceleration. It is showing the following codes P0101, P0299, ... P2270, P2228, P2227, P11C2, P0496, P00B7, P015B, P0097,P0113, P0234, P0325, P0171, ...2011 chevy cruze p0171 lean condition diag and repair2014 chevy cruze 1.4 code p1101 update video Cruze chevroletP0299 code chevy cruze. Check Details. Cruze p0299 chevy code. P0299 trouble codeCode po299 for chevy cruze .. Check Details. Check Details. Întoarcere egalitate Conformitatea cu p0299 mazda paie Spre adevăr ulei. Check Details1st Generation Chevrolet Cruze. Gen1 Service Issues P0171, P0324 and loud ticking noise 2011 cruze 1.4t ... The cam cover gasket was cracked horribly which I'm hoping solves the p0171 code, but the oil residue around the pressure disc in the cam cover gives me doubts.Blasirl. P1101 is one of the most common of the Chevy Cruze trouble codes. Whenever you start the vehicle, the mass airflow sensor does a self diagnostic. If the results of this test are out of range, than the P1101 trouble code is thrown. There are a number of issues that can cause the mass air flow sensor to fail the diagnostic.General Motors said it has secured more than 110,000 reservations for its new all-electric Chevrolet Silverado, which includes reservations from more than 240 fleet operators, Chai...I've got a 2015 Chevy Cruze 1LT 1.4L Turbo, with OBD codes P0171, P0496, and P1101. Resetting it by battery cable didn't - Answered by a verified Chevy Mechanic ... P015B, P1101, P0496, P0171 codes on a 2012 chevy cruze 1.4 turbo. The car at the moment will not accelerate well but is idiling around 700rpm. Are these codes somehow connected?Apr 11, 2021 · I installed a downstream o2 sensor on my Cruze and it fixed both codes. Hopes this helps y'all out!like/Share/Subscribe-Music Credits: Song: Lvne - TribesMus... Chevy cruze p0171 code, If your Chevy Cruze has the P0303 trouble code, you should know that it's about as common of a code as there is. It's a generic code (same meaning for all vehicles) that indicates that your car’s third cylinder is misfiring. ... When your Cruze has P0303 and P0171 together, it’s often caused by a clogged or underperforming fuel injector ..., Tools needed for diagnosing advanced P0171 code causes: OBD II scanner or code reader. Carburetor or throttle body cleaner. 1. Disconnected or Leaking Hoses. Air Intake Hose: Find the air intake hose that connects to the engine. Grab and shake it so you can feel if anything is loose., Aug 21, 2022 · The P0171 code means that more air than gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0171 is set in along with the P0174 code, it is highly 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 Mass Air Flow (MAF) Sensor. , 28 Nov 2020 ... 2014 Chevy Cruze 1.8L Showing quick tips that can trigger a P0411 Secondary Air Injection System Incorrect Air Flow Detected and P0171 ..., 2014 Chevy Cruze Approx 56,000 miles Symptoms: Check Engine PO171 code "Service Traction Control" will appear after the car has been on and running for a few minutes and stay on. "Service Stabilitrack System" will appear sporadically. Rough Idle - While stopped at red lights, the car will shake noticeably., Tools needed for diagnosing advanced P0171 code causes: OBD II scanner or code reader. Carburetor or throttle body cleaner. 1. Disconnected or Leaking Hoses. Air Intake Hose: Find the air intake hose that connects to the engine. Grab and shake it so you can feel if anything is loose., Chevy code p0325 2017 chevy cruze. Cruze p0171 4l pcvChevy cruze p0496 Causes and fixes p0299 code chevy cruze2014 chevy cruze 1.4 turbo. p0299?. I have a 2014 cruze. dtc p015b and p0299. sounds like theres an exhaust leak from the engine bayChevy cruze code p0106 Diagnosing a p0299 on a 2014 chevrolet cruze., Need help with P0171 code for my 2016 Chevy Cruz LT. ... P0171 is when computer can't add enough fuel to correct a lean condition. Basically you have an air leak allowing unmetered air into the fuel/air system. ... CruzeTalk.com forum, news, discussions and the best community for owners to discuss all things related to the Chevy Cruze. Show ..., 2013 Cruze LT RS package. 1.4L turbo 111k miles. Codes: P0016 & P0017 & P0171. Just picked this Cruze up 2 days ago, have been reading a lot and just want to make sure I'm on the right track. I don't know the history of this vehicle, the oil was changed right before I got it, but the old sticker was left on and it was about 6k miles over due ..., Jan 29, 2021 · About a week ago my 2014 1.4L Cruze was idling rough, lack of power, etc and throwing out codes: P0106, P0171 and P1101. I took it to my local Chevy dealer and they replaced the intake manifold and the valve cover. When I got the Cruze home, the check engine light came back on and is now showing codes P015B, P0171, P1101. , How to fix 2013 chev Cruze codes P0171 and P1101. Chevrolet Cruze Cars & Trucks; Related Topics. cruze engine light 2011 cruze p1101 chevrolet cruze engine light... chevrolet cruze engine light check engine light code 171 2011 cruze p0171 fuel trim bank 1 chevrolet cruze conditioning, 2012 chevy cruze 1.4 turbo - got P0171 code check light on - car was running rougher idling. Then rpm going nuts when idle or even park acting like it was going to die. That next day replaced PCV valve cover which many recommended to me. Also in taking off the cover - noticed when taking the coil pack out two boots broke, entirely., The BARO sensor provides a voltage signal to the ECM relative to the atmospheric pressure changes. The ECM monitors the BARO sensor signal for a voltage outside of the normal range. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the BARO pressure is less than 50 kPa (7.3 psi) or greater than 115 kPa (16.7 psi). P2227 ..., Check eng. on codes p0106 p015b p0171 p1101 2013 cruze turbo. Does not reset. Changed. I changed map - Answered by a verified Chevy Mechanic ... 2014 Chevy Cruze 1.4. Codes p0106, p0171, p0496, p0507, p1101, u0100, b0158, b1325, b010e, u0164, u0073. Customer vehicle have already replaced the intake and multiple sensors with no results., On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. The P0171 is one of the more common trouble codes. This code is triggered by the first downstream (front) O2 sensor. The sensor provides a reading of the air:fuel ratio leaving the engine's cylinders, and the vehicles powertrain/engine control module (PCM/ECM) uses ..., 8 Dec 2021 ... Chevy Cruze P0171 - Rough Idle - Stalling - Possible Fixes For Diyer's · Comments168., That previously got a code p0106 a p0171 and code p1101. My 2012 Chevy Cruze ltrs 1.4 l turbo was smoking black smoke out the tail pipe and idling rough. I changed the valve cover and also the purge valve. The black smoking stopped however when I drove in the car heated up it began to smoke again out the exhaust tailpipe but it was a lighter ..., Still getting p0171 and p2096. Hey all, I need help. My 2011 eco has rough idle and is getting horrible gas mileage now. I have replaced the valve/cam cover and did a pcv fix kit. Purge canister is new, new o-rings on dipstick, both o2 censors new, new oil fill cap (on correctly), new spark plugs, and new ignition pack., The P0171 code could either mean that the oxygen sensor detects too much oxygen or too little fuel in the air-to-fuel ratio. Some possible causes for the imbalance include vacuum leaks, malfunctioning mass air flow sensors, and a clogged fuel filter. ... For example, a P0171 on your Chevy Cruze could be due to a failing PCV system, while the ..., The Chevy’s rear axle code contains information on the vehicle’s gear ratio, date of manufacture and the rear axle assembly plant. The prefix on the code consists of two letters fo..., My 2015 chevy cruze through a P069e and a p0231 codes three nights ago. Took to local service center but engine light decided to turn off on its own the day of appointment. ... CruzeTalk.com forum, news, discussions and the best community for owners to discuss all things related to the Chevy Cruze. Show Less . Full Forum Listing. Explore Our ..., I Made an Updated Video on a Cruze P1101 Code with Better Audio and Information. Here is a Link : https://www.youtube.com/watch?v=k5gXKOMqAVIQuick overview o..., In this video you will be watching of how to diagnose and fix a code of P0171 code for 2014 GM Chevy Cruze..Symptoms of this code car will stall intermitently., 15 Nov 2019 ... ... CHEVY / GM Diagnosing a very lean condition P0171 ( lean on Bank 1 )and various other fault codes. FOLLOW ME ON INSTAGRAM: @HMARMOBILETECH ..., It is running rough at idle, seems to misfire every few seconds, and has reduced power when accelerating. This following link has some good information, but I am not sure how to diagnose without just buying new parts: Chevy Cruze P1101 and P0171 Trouble Codes | Drivetrain Resource The codes are thrown after it warms up for about 10 minutes., 2014 Chevy Cruze 1.4. Codes p0106, p0171, p0496, p0507, p1101, u0100, b0158, b1325, b010e, u0164, u0073. Customer - Answered by a verified Chevy Mechanic. ... Hey I have a 16 Chevy Cruze 1.4 turbo. I have codes p0014, p0017,p0106, p1101. Having trouble getting it to stay running, have to pedal the accelerator to keep it running and it will ..., 27 Nov 2018 ... This video will show you very common pcv vacuum leak on a 08-16 chevy Cruze 1.4L. Replacement of valve cover step by step. DTC P0171 GM Part ..., Chevrolet Cruze 2011 2016 Sonic 2012 2019 Trax 2013 2019 Volt 2012 2015 Involved Region or Country North America Condition Some customers may comment that the MIL is illuminated. Some technicians may find DTC P0171 (Fuel Trim System Lean) or other airflow related codes set in the Engine Control Module (ECM). Cause, I got a 2015 Chevy Cruze with 75,000 miles P0171 code and p1101 shop replaced the Valve cover for $500+. Two weeks later engine light was on again same code is now saying the mass airflow sensor and mass airflow filter need replacing for $300+, and still, my engine light is on p0171 code., Made it too tight, AC kicking on or a load on the alternator would trigger a misfire code, so had to loosen up that spec. Cruze could be the same way with this P0171. Heck will let Chevy work this out, unless they would give me access to the source code. Finding a decent Chevy dealer is the problem, think I found a good one., Codes:P0171 Fuel system too lean bank 1U0100 Lost comm. with ecm/pcm invalid serial data receivedU0140 Lost comm. with body control systemU0073 Control modul..., 1 post · Joined 2021. #1 · Oct 31, 2021. my 2013 check engine light came on and threw 3 codes P03101 (misfire cyl1), p0171 (Fuel Trim system lean), p2270 (signal stuck lean sensor 2) A few weeks ago it had code P03101 with check engine we replaced all coils and spark plug, the code cleared and car was running fine., Quick video on how to check for air leaks entering the system. Like the valve cover, perfect valve or torn air duct. Coolant leak too.