P0171 cadillac ats 2013 - How to Fix the P069E Code. As mentioned above, there are a lot of possible repair solutions for OBD-II codes.The P069E code is not an exception. Its repair depends not only on the root cause but also on the vehicle’s make and model.

 
PCM P0171 current (fuel system lean bank one) ... 2010 MINI JCW x 2, 2013 BMW X3 M Sport; Engine: Other (not listed) ... General Cadillac Forums ; P0171 & P0174 Theme .... Still on the market crossword clue

Jul 2, 2022 · Submariner409 · #2 · Jul 3, 2022. Usually associated with a vacuum leak, thus causing lean fuel mixtures. Check every intake duct clamp and hose plus the vacuum lines and any rubber connectors. P 0171 is the odd cylinders bank (in the V-engines) P 0174 is the even cylinders bank. OBDII diagnostics. Oct 5, 2018 · 4’th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your ATS’s fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder’s location. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the engine. How to Fix the P069E Code. As mentioned above, there are a lot of possible repair solutions for OBD-II codes.The P069E code is not an exception. Its repair depends not only on the root cause but also on the vehicle’s make and model.The Cadillac ATS requires a transmission fluid and filter service at 45k (many dealers will do at 35k or earlier). If you ignore it, it will lead to an ever-...0:00 / 11:34 2013-2018 Cadillac ATS 2.0T - P0171 Vacuum Leak - EASY FIX Jeff Lyle 1.3K subscribers Subscribe Share 5.2K views 8 months ago PCV Hose from Amazon with the easy connectors:...Nov 23, 2019 · First of all thanks for letting me part of be this community. I have a 2013 Cadillac ATS 2.0 turbo for which I am having a bit of an issue with. I am currently getting a p0171 code which I've looked up and it's supposed to mean that the car is running lean. I have taken this to my mechanic and had a smoked tail stun as usually that's a cool ... Sep 19, 2020 · Today we try to diagnose a 2013 Cadillac ATS 2.0l Turbo AWD with a P06DC. Let's see if we can prove what it is and fix the car.Code:P06DC - Oil Pump Pressure... Today we try to diagnose a 2013 Cadillac ATS 2.0l Turbo AWD with a P06DC. Let's see if we can prove what it is and fix the car.Code:P06DC - Oil Pump Pressure...Cadillac CT4, ATS ; Trying to Solve P0171 on 2015 ATS Trying to Solve P0171 on 2015 ATS. By Santoszach9 February 6, 2020 in Cadillac CT4, ATS. Share ... Can’t quite narrow down the answer I have a 2015 Cadillac ATS 2.0 and nothing really seems to narrow it down where Are common air leak spots?P228c missing configeration fuel pressure P228c missing configeration low fuel pressure , when u drive normal its ok, but when drive hard it dies and it goes into limp home...; HELP-2013 Buick throwing P228C, P0010, P0016, P0017, P0068, U0100 OK so my 2013 Buick Verano is throwing the following codes: P228C, P0010, P0016, P0017, P0068, U0100. I …2013 Cadillac ATS 3.6L Performance AWD 83,091 mi 321 hp 3.6L V6. white. $13,911 GREAT DEAL Performance Package. Leather Seats + more (636) 306-3095. Request Info. Union, MO Year: 2013 Make: Cadillac Model: ATS Body type: Sedan Doors: 4 doors Drivetrain: All-Wheel Drive Engine: 321 hp 3.6L V6 Exterior color: White ...Your car is equipped with a lot of engine sensors that are essential to keeping your vehicle running. The OBD-II code P015b indicates the PCM has detected a delayed response from the bank 1 sensor 1 oxygen (O2) sensor.If your scanner logs this code, the guide below will help you address it.ATS Forums - 2013-2019. ATS General Discussion Forum. PCV Valve-Don't Ignore It. Jump to Latest Follow 10K views 9 replies 7 participants last post by oemtech Aug 5, 2020 ... 2013 CADILLAC ATS 2.0L L4 Turbocharged Exhaust & Emission Parts | …Again, $7E8 & $7E9 are not engine codes. A basic OBD2 scan tool offers a few different modes (from 1 to 10) to perform particular tasks on your cars. In this case, $7 represents mode 7, which basically means diagnostic code request. E8 (or E9) indicates that you request fault codes from module E8 (or E9). In conclusion: What you have to do when ...Sep 21, 2020 · ShawnaB. 1 post · Joined 2022. #2 · Dec 21, 2022. Badfish778 said: I have 2013 ats2.0 awd. All 4 codes came up this morning. Not sure where to start. Thanks. Wow all of those codes came up on my car this evening after getting it back from the mechanic after they couldn't figure out what was wrong and why the transmission is shuttering or ... Jan 21, 2022 · 2013 ATS 2.0 AWD Premium with 70k miles. Christmas eve I was driving from Central Ohio to Central Illinois and 4.5 hours in to the drive, gently accelerating up an on ramp, the dash lit up. Service Stabilitrack, traction control off, reduced engine power, I immediately pulled over and had the car put on a flatbed and taken to the local dealership. 15 Location:Massachusetts & Daytona Beach Car Model/Year: 2003 STS, 2006 STS, 2006 CTS, 2013 ATS T Posted March 8, 2019 (edited) I was having an intermittent "Check Engine" light showing P0171. Connected my diagnostic tool and found very high (38+) LTFT at idle that would slowly decrease at higher RPM to (25).In fact, not much has changed on the Cadillac's 0-60-mph run over time. Our 2017 Cadillac ATS ran to 60 mph in 5.7 seconds, matching the time we achieved on the 2013 model we first tested. That's ...P0174 P0171 P0496 P0442 FIXED FAST & EASY CADILLAC CTS COUPE! VACUUM LEAK FOUND! P0174 - System too lean bank 2P0171 - System too lean bank 1 P0496 - Evapora...Symptoms. Causes. Common Fixes. Questions. P0171 Definition: Fuel Trim System Lean Bank 1. P0171 is a generic code, meaning it has the same definition for the …2013 ATS 2.0t code P 0171. So for about three months my car has been sending code po171 Bank 1 fuel trim lean I am a female don’t know much on part names and stuff but I have taken my car in to dealerships and local mechanic for this code have replaced a lot of tubes and a censor and my cold air intake but the car engine light still came back ...0:00 / 11:34 2013-2018 Cadillac ATS 2.0T - P0171 Vacuum Leak - EASY FIX Jeff Lyle 1.3K subscribers Subscribe Share 5.2K views 8 months ago PCV Hose from Amazon with the easy connectors:...NHTSA ID: 10057593 TSB ID: PI1092B General motors 2013-2014 cadillac ats equipped with 2.5l engine(rpo lcv).some vehicles experience a rough idle, felt in seats, when engine operating at high temperature. *lj Listings 1 - 21 of 1149 ... Cadillac ATS 3.6 RWD with FE3 magnetic ride. m3nomore, 03/30/2013. 2013 Cadillac ATS Premium 4dr Sedan (3.6L 6cyl 6A).On this episode of Head 2 Head, Motor Trends Mike Febbo pits two tuner cars against each other. In one corner, the BMW 335i loaded with an BMW M.With the P0133 code, you know you are dealing with a fault related to the oxygen sensor on bank 1. It’s related to sensor 1. However, this same fault can occur with the other oxygen sensors. The only way to know the difference is because the code won’t be the same. Here are the two other codes that would occur on Bank 1.2015 Cadillac SRX 3.6L p0171, p0174, p0446, p0496 - Answered by a verified Ford Mechanic. We use cookies to give you the best possible experience on our website. ... 2013 Chevy Cruze 1.4L non turbo customer stated that when.The P0089 is a diagnostic trouble code (DTC) for a fault found with the fuel pressure regulator. The fuel pressure regulator regulates how much fuel is delivered to the fuel injectors. The ECU controls the fuel pressure regulator and when a fault is detected the P0089 code is set. This code will remain until the problem is resolved.P0171 Cadillac Description. The Engine Control Module (ECM) controls the air/fuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. Fuel delivery is controlled differently during Open Loop and Closed Loop. During Open Loop, the ECM determines fuel delivery based on sensor ...On this episode of Head 2 Head, Motor Trends Mike Febbo pits two tuner cars against each other. In one corner, the BMW 335i loaded with an BMW M.Cadillac Bar & Grill, Phnom Penh. 3,766 likes · 1,976 were here. Southern hospitality and home cooking in Phnom Penh, CambodiaOur service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. 1 (855) 347-2779 · [email protected]. Read FAQ. GET A QUOTE. P2097 code definition P2097 is a general OBD-II diagnostic trouble code that indicates a fault with the post catalyst fuel trim system being too rich in bank 1.Door locks, power programmable with lockout protection. Remote Keyless Entry. Cruise control, electronic with set and resume speed and with 1 mph and 5 mph increment adjustment. Trunk release ...Shakes When Idle But Smooths Out When Accelerating. The reason your Cadillac ATS shakes at idle but smooths out when accelerating is that the engine is spinning faster, which smooths out any misfires. If a motor mount is causing the problem, once you put the car into gear, the torque from the engine will hold it against the frame. It …This page is meant to help you troubleshoot the Cadillac ATS P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. TableService stabilitrak codes P228C, P0089, P0171, P0174. ... 2020 Cadillac XT5 Sport, Shadow Metallic outside, ... 2013 GMC Acadia Denali. Save. Like. Reactions: 1. 0 Reply Hide Reply. This is an older thread, you may not receive a response, and could be reviving an old thread.Diagnosing P0171 System too lean code. How to Remove and Replace PCV Hose on a Cadillac ATS 2.0l. How to Remove and Replace PCV Hose on a Chevy with 2.0l. What does a P0171 code …#Cadillac#ATS#P0171#PCVhoseThis is a 2015 Cadillac ATS luxury 2.0L. P0171 code was cause by vacuum leaking at PCV hose.Y-Renee K. Action Scientist (part time) Totally Awesome (full time) 2013 ATS 6MT 2.0T; Red on Red Cos Red Wunz Go FastaCadillac Bar & Grill, Phnom Penh. 3,766 likes · 1,976 were here. Southern hospitality and home cooking in Phnom Penh, CambodiaJul 19, 2019 · 2013 ATS 2.0t engine problems. I got a 2013 ats last year. Absolutely love the car, but it's been expensive. A few months after owning it I had a p0171 code pop up. Replaced the high pressure fuel pump. A few months later it came on again. Cracked vacuum lines on top of the motor replaced. Buick Verano 2013 - 2016 All All 2.0 LHU All Cadillac ATS 2013 - 2019 All All 2.0 LTG All Cadillac CT6 2016 - 2019 All All 2.0 LTG All Cadillac CTS 2014 - 2019 All All 2.0 LTG All Chevrolet Camaro 2016 - 2019 All All 2.0 LTG All Chevrolet Equinox 2018 - 2019 All All 1.5 LYX and 2.0 LTG All Chevrolet Malibu 2013 - 2019 All All 1.5 LFV and 2.0 ...=====1===== P0171 Raw code: 0171 ECU: Engine control unit Status: Confirmed OBDII: System too lean, bank 1 =====2===== P0711 Raw code: 0711 ECU: 7EA Status: GM failure record OBDII: Transmission fluid temperature (TFT) sensor - range/performance problem General Electrical Failures [0x00] =====3===== P0171 Raw code: 0171 ECU: Engine control unit Status: DTC supported by calibration, Current DTC ...How to Fix the P069E Code. As mentioned above, there are a lot of possible repair solutions for OBD-II codes.The P069E code is not an exception. Its repair depends not only on the root cause but also on the vehicle’s make and model.ATS Forums - 2013-2019. ATS General Discussion Forum. P0700/P0711 codes.. Jump to Latest Follow 16K views 20 replies 7 participants last post by fmk002 Feb ... 2016 Cadillac ATS base, 2.5L, 56k mikes. See less See more 1 Reply. Save. 1 - 20 of 21 Posts. 1; 2; Next. 1 of 2I have a problem with my check engine light going on and off I have a 2013 Cadillac ATS 2.0 turbo. I used the diagnostic tool and two codes popped up P0171 and 60606. I have yet to figure this problem out it’s been going on for months. I’ve brought in my car to numerous mechanics even including...Intermittent loss of power when check engine light on ! Please don’t forget to like, comment, share and subscribe. Thank you all Follow Us CSCTECHDEP on Face...15 Location:Massachusetts & Daytona Beach Car Model/Year: 2003 STS, 2006 STS, 2006 CTS, 2013 ATS T Posted March 8, 2019 (edited) I was having an intermittent "Check Engine" light showing P0171. Connected my diagnostic tool and found very high (38+) LTFT at idle that would slowly decrease at higher RPM to (25).Cadillac SRX Brake Pads Price. Just getting your brake pads replaced on your Cadillac SRX can cost between $347-$407. Cost at the Mechanic: Parts: $139 – $163; Labor: $208 – $244; Brake pad replacement is done at prescribed mileage intervals, but you should have them replaced immediately when a noise and/or vibration is felt in the brake …Nov 17, 2015 · P0171, 0174 solved. I figured it may be useful for someone in the future looking for P0171 and 174 codes with New Era Intake. I installed NE intake on my 2012 Coupe a month ago and a week later got CEL with P0171 and P0174. Several days later I took my car to a local shop for 2.4 upper, injectors and a tune. P0171 Code. Hi in the past 1000 miles I have had the P0171 check engine light code come on roughly 4/5 times and I erase the code but comes back. It looks like it comes on when sitting at idle for a bit never came on while driving..only in idle. looked up what is may be (maf sensor,02 sensors,vacuum leaks) I cleaned the maf with crc cleaner and ...Jan 16, 2023 · PCV Hose from Amazon with the easy connectors:https://www.amazon.com/dp/B0BLS3MWKL?psc=1&ref=ppx_yo2ov_dt_b_product_detailsFuel Line Disconnect tools:https:/... 2013 Cadillac ATS quick fix mechanic said 680$ to 1000$ to fix said was o2 sensors and acrylic converter and other mechanic said needed to replace all igniti... May 11, 2022 · 2013 ATS 2.0t code P 0171. So for about three months my car has been sending code po171 Bank 1 fuel trim lean I am a female don’t know much on part names and stuff but I have taken my car in to dealerships and local mechanic for this code have replaced a lot of tubes and a censor and my cold air intake but the car engine light still came back ... Sudderth · #8 · Feb 13, 2020. yes, check fuel pressure. it is probably the fuel control unit or the second pump not kicking in. Lastly, the fuse box could be loose, under the hood and that will cause the second pump not to work and you end up …Submariner409. 81932 posts · Joined 2006. #2 · Jun 10, 2022. P 0171 and P 0174 are lean fuel mixture codes, cylinder banks 1 and 2. Look for intake manifold and vacuum leaks. Premium Member. Maryland Eastern Shore. If it won't run, chrome it. 2002 STS F55.What the P1101 code means. When a P1101 trouble code is stored, it means that the PCM detected a discrepancy with the voltage from the MAF sensor. This problem can be detected while the PCM is running a self diagnostic called a Key On Engine Running (KOER) test. When the voltage from the MAF sensor is greater or lesser than the voltage allowed ...Bulletin No.: 20-NA-047 March, 2020 Page 3 Camshaft Cover Inspection, Cleaning and Orifice Replacement Remove the camshaft cover and remove the PCVAug 26, 2021 · P0171 P0299 and P288C Codes on 2013 ATS 2.0T Hello, two weeks ago I had two codes P0171 and p0299 and they eventually went away. Last night I was driving on the high way when suddenly check engine light, service stabilitrak, and service traction control lights all came on. You Save: $ 20.64 ( 40%) Check the fit. Add to Cart. Fits the following Cadillac ATS Years: 2013-2015 Cadillac ATS | 2 DOOR COUPE, 2 DOOR LUXURY COUPE, 2 DOOR PERFORMANCE COUPE, 3 DOOR PREMIUM COUPE, 4 DOOR LUXURY SEDAN, 4 DOOR PERFORMANCE SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN | 4 Cyl 2.0L. The P0299 code results from low air pressure coming to the turbine of the turbocharger. The problem can be vacuum leaks, EGR issues, a damaged turbo, or a problem with the boost pressure sensor. The result is that the engine will not accelerate as it should. Depending on the vehicle, the ECU may even trigger a limp mode.P0171, 0174 solved. I figured it may be useful for someone in the future looking for P0171 and 174 codes with New Era Intake. I installed NE intake on my 2012 Coupe a month ago and a week later got CEL with P0171 and P0174. Several days later I took my car to a local shop for 2.4 upper, injectors and a tune.The P0299 code results from low air pressure coming to the turbine of the turbocharger. The problem can be vacuum leaks, EGR issues, a damaged turbo, or a problem with the boost pressure sensor. The result is that the engine will not accelerate as it should. Depending on the vehicle, the ECU may even trigger a limp mode.ShawnaB. 1 post · Joined 2022. #2 · Dec 21, 2022. Badfish778 said: I have 2013 ats2.0 awd. All 4 codes came up this morning. Not sure where to start. Thanks. Wow all of those codes came up on my car this evening after getting it back from the mechanic after they couldn't figure out what was wrong and why the transmission is shuttering or ...#Checkengine #P0171 #CarsCode P2097 means Post Catalyst Fuel Trim System Too Rich. Learn more about causes, symptoms, and diagnostics for code P2097.The definitions are as follows: P0171 - Fuel Trim System Lean Bank 1. P00C6 - Fuel and air metering and auxiliary emission controls. P0299 - turbo/super charger underboost. P228C - fuel and air metering and auxiliary emission controls. Reply. Save. rsingl · #5 · Nov 15, 2019. That is an odd set of codes.What Does Code P0171 Mean for Your GM Vehicle? P0171 definition: Bank 1 has too much air or not enough fuel; Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. Diagnosis: It …How to Fix the P069E Code. As mentioned above, there are a lot of possible repair solutions for OBD-II codes.The P069E code is not an exception. Its repair depends not only on the root cause but also on the vehicle’s make and model.Code P0014 Cadillac Description. The Camshaft Position (CMP) actuator is attached to each camshaft and is hydraulically operated in order to change the angle of the camshaft relative to Crankshaft Position ( CKP ). The CMP actuator solenoid is controlled by the control module. The control module sends a pulse width modulated 12-volt signal to a ...Feb 23, 2016 · 2013 ATS STD with 32k - P0171 left bank too lean code - dealer says 'bad gas'. :| 21656 Views 33 Replies 18 Participants Last post by Sergio526 , Jan 30, 2019 Jump to Latest R 1 - 8 of 8 Posts. rustybear3 · #2 · Sep 30, 2017. Re: P228C code on 2013 Cadillac ATS 2.5. The code P228C is a fuel regulator exceeded control limits. Pressure too low. If I'm not mistaken, GM issued a bulletin awhile back for this code to replace the fuel rail pressure sensor. Reply.Feb 23, 2023 · Code P0171 Cadillac Tech Notes. 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 ... Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. P0171 code definition System Too Lean (Bank 1) What the P0171 code means 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 …3.6L Premium Sedan 4D. $49,740. $13,483. For reference, the 2013 Cadillac ATS originally had a starting sticker price of $35,340, with the range-topping ATS 3.6L Premium Sedan 4D starting at $49,740.We carry emission system parts like the MAP sensor, purge valve, oxygen sensor, solenoid valve and vapor canisters. When you need ATS parts, then you can be sure GMPartsCenter.net will get the lowest total price shipped direct to your door on all your Cadillac parts. We are proud of our quick order processing - same day shipping in most cases ...P0192 trouble code definition. Fuel rail pressure sensor circuit low input. What the P0192 code means. The power control module (PCM) has detected that the fuel pressure is not within the normal range which is required for proper engine operation.Technicians may find DTC P0171 set. Check possible causes per normal SI diagnostics and correct other conditions as applicable. Recommendation/Instructions Check the engine mount vacuum control system for leaks with vacuum only. Do not use positive pressure to check the engine mount vacuum control system for leaks at the tank.P0171 Cadillac Description. The Engine Control Module (ECM) controls the air/fuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. Fuel delivery is controlled differently during Open Loop and Closed Loop. During Open Loop, the ECM determines fuel delivery based on sensor ...#Cadillac#ATS#P0171#PCVhoseThis is a 2015 Cadillac ATS luxury 2.0L. P0171 code was cause by vacuum leaking at PCV hose.P0711 code definition The P0711 code is a generic powertrain code related to the transmission, including sensor failures and pressure faults. In this case, it means that the engine control module (ECM) or powertrain control...

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p0171 cadillac ats 2013

Mar 28, 2021 · #Cadillac#ATS#P0171#PCVhoseThis is a 2015 Cadillac ATS luxury 2.0L. P0171 code was cause by vacuum leaking at PCV hose. Jul 7, 2020 · P0171 and P0174 occur when the air/fuel mixture on the vehicle gets too lean. They are both thrown when the oxygen sensors detect that there is not enough oxygen in the exhaust. The engine then makes adjustments to compensate and throws these codes, which trigger the service engine soon light. When these codes both appear at the same time, it ... 2013-2018 Cadillac ATS 2014-2018 Cadillac CTS 2016-2018 Cadillac CT6 2013-2018 Chevrolet Malibu 2016-2018 Chevrolet Camaro 2018 Chevrolet Equinox, Traverse 2018 GMC Terrain 2018 Holden Commodore, Equinox Equipped with 2.0LTurbo Engine (RPO LTG) Attention: This PI also applies to any of the above models that may be Export from …A large vacuum leak between the intake manifold and the throttle body causes two leans codes to set on this 2001 Cadillac DeVille.A large vacuum leak between the intake manifold and the throttle body causes two leans codes to set on this 2001 Cadillac DeVille.P0171 Cadillac Description. The Engine Control Module (ECM) controls the air/fuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. Fuel delivery is controlled differently during Open Loop and Closed Loop. During Open Loop, the ECM determines fuel delivery based on sensor ...Bulletin No.: 20-NA-047 March, 2020 Page 3 Camshaft Cover Inspection, Cleaning and Orifice Replacement Remove the camshaft cover and remove the PCVReply Save pissedoffwookiee · #3 · Feb 23, 2016 rbrooks said: Hello, Like the title says, my '13 that I've had for 3 weeks now threw the code P0171. I took it back to the dealer who prounounced it bad gas and said, 'Just drive it until it goes away'.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...2013 ATS 2.0 AWD Premium with 70k miles. Christmas eve I was driving from Central Ohio to Central Illinois and 4.5 hours in to the drive, gently accelerating up an on ramp, the dash lit up. Service Stabilitrack, traction control off, reduced engine power, I immediately pulled over and had the car put on a flatbed and taken to the local dealership.Subject: Malfunction Indicator Lamp (MIL) On, DTC P0171 Set Models: 2013-2015 Cadillac ATS 2014-2015 Cadillac CTS Sedan (VIN A) Equipped with 2.0L or 2.5L Engine (RPOs LTG, LCV) Attention: This PI only applies to vehicles with the 4 cylinder engine with vacuum controlled engine mounts.P 0171 is a fuel trim (lean) problem with cylinder bank 1-3-5. Check the injectors for pulse ticks - stethoscope. Vacuum leak checks, particularly in the PCV dirty air line (connected to full manifold vacuum). OBDII diagnostics. Trouble codes description for GM. OBDII/EOBD diagnostic code definition.Dec 17, 2014 · DTC P0171 – How To Service a Cadillac ATS MAF. The OBDII check engine code P0171 will trigger the Malfunction Indicator Lamp (MIL) and this GM trouble code is indicating that there’s something wrong with your Cadillac’s fuel trims. More specifically, the code is for Bank 1 in your engine running too lean, or not having enough fuel for ... .

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