Dtc p0171 chevrolet

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 …

Dtc p0171 chevrolet. This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the heated oxygen sensor is shorted to ground if the HO2S voltage is less than 50 mV. P0131 Chevrolet Code - HO2S Circuit Low Voltage Bank 1 Sensor 1.

P0171 Fuel system Lean. I've owned my car all of a month, had a coolant leak, then had to replace the spark plugs, and the manual trans fluid, and now the car wants more. Today on to lunch break, she popped the check engine light on, and my 2012, 1.4 Turbo, stayed on my mind all day at work. It ran well enough, and I got it home, scanned …

Code P0171 2017 Chevrolet Silverado 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 ...Typically, the P0171 engine code is also paired with a P0170 code; the P0170 code states that there is an issue with the fuel trim. ... Diagnosing a P0171 code in a Chevy vehicle or any other vehicle by using an OBD II scanner. These are tools that you connect to your vehicle's computer. Usually, the place to connect the scanner is under the ...Code P0171 2018 Chevrolet Silverado 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 ...4 posts · Joined 2019. #1 · May 30, 2019. Good afternoon. I’ve been looking for help all over. 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 ...Bill Saporito test-drives the new Chevy SS, a flashback to the time of stick-shift muscle cars. By clicking "TRY IT", I agree to receive newsletters and promotions from Money and i...There’s a video on that a few paragraphs up in the P1101 section. Far and away, the most common trouble codes on the Chevy Cruze are P1101 and P0171. They are OBD-II trouble codes. It's usually a bad MAF sensor or air has gotten in where it should not have when these codes are combined. Jump to: P1101 P0171 P1101: MAF Out of Self Test Range.

P0171 indicates that your Chevy Trax is either getting too much air or not enough fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. You may see a cylinder misfire code or fuel injector-specific code with P0171.Aug 24, 2018 · Te suministramos todo lo que necesitas saber sobre el código DTC P0171: ️ Descripción, ️ causas, ️ síntomas y ️ posibles soluciones.LEER SOLUCIÓN DEL CÓD... Jul 23, 2023 · 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. PROCEDIMIENTO DE DIAGNÓSTICO EN VEHICULO SONIC CON FALLA, LUZ CHECK (MIL) ENCENDIDA.GSCAN3 DE VENTA EN:MAQUINA DE HUMO DE VENTA EN: www.laredotools.comLAREDO... 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.Fuel trims and Equinox P0171 or Terrain P0171 trouble code. A P0171 FUEL METERING TOO LEAN code can mean the engine is getting too much unmetered air or too little fuel. So you want to see if the PCM is trying to add fuel. Refer to the short and long term fuel trim data on your scan tool. Short term fuel trims should vary as your drive the vehicle.It receives data from various sensors and uses it to control the fuel delivery system, ignition timing, and other engine functions. If the PCM detects an issue with the fuel system or air/fuel mixture, it may set a P0171 code. The PCM will also store the trouble code and freeze frame data, which can be used to help diagnose the issue.The generic description for the P0174 trouble code is System too lean, bank 2, which effectively means the engine is getting too much air or insufficient fuel. As a result, the air-fuel mixture will be far off the ideal 14.7:1 ratio necessary for the engine to run optimally and efficiently. The car’s PCM uses multiple sensors, including the ...

To diagnose the P0171 2006 Chevrolet Trailblazer 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.Sep 18, 2023 ... The P0171 remained, smoked the evap system and found no leaks. Checked fuel pressure at the rail and found it to be about 20 psi. Verified ...Blasirl. 15883 posts · Joined 2015. #2 · Feb 18, 2020. Welcome Aboard! A code P0171 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the ...In simple terms: the PCM sets the P0171 error code when there's too much oxygen content or too little fuel in the air-fuel ratio. What Causes The P0171 Error Code? …Gm’s 1.4L turbocharged 4-cylinder engine, commonly found in the Chevy Sonic, Cruze and Buick Encore, has a well-known issue resulting in a lean code, P0171, ...Hablamos de las causas principales de los codigos de falla dtc p0171 y p0174. Todo sobre autos. Mecanico en vivo. Consulta tus preguntas. Ojeda motors

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In this video we discuss common causes and repair for code P0171. the subject vehicle is a 2006 Chevy Equinox equipped with the 3.4L engine. Also shown, a 20...P0171 indicates that your Chevy Trax is either getting too much air or not enough fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. You may see a cylinder misfire code or fuel injector-specific code with P0171.Feb 24, 2024 · The most common causes of codes P0171 and P0174 include: Vacuum Leaks: Vacuum leaks occur when there's an unintended gap or hole in the intake system of the engine, allowing extra unmetered air to enter it. This disrupts the air/fuel mixture, leading to a lean condition and triggering codes P0171 and P0174. Code P0171 2016 Chevrolet Silverado 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 ...Apr 9, 2009 ... Some customers may comment that the check engine light is on. A scan tool may reveal DTCs P0171 and/or P0174 set in history or current. If the ...

The Chevrolet 5.7-liter (350-cubic-inch) engine employs an overhead valve design that requires occasional maintenance. Adjusting the clearance between the valve stem and rocker arm...Mezcla PobreElementos en causa. SoluciónResuelto - resolución - soluciónP0171 y P0174Chevrolet Matiz / Spark - Pontiac G2Sintomas:• Luz de check engine encen...This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the heated oxygen sensor is shorted to ground if the HO2S voltage is less than 50 mV. P0131 Chevrolet Code - HO2S Circuit Low Voltage Bank 1 Sensor 1.When the P0171 code sets, the oxygen sensors are detecting too little oxygen in the exhaust (running "lean") and the control module is adding more fuel than normal to sustain the proper air/fuel mixture. Rich Mixture = Too much fuel, not enough air. Lean Mixture = Too much air, not enough fuel. Driving with this trouble code is not recommended.Hablamos de las causas principales de los codigos de falla dtc p0171 y p0174. Todo sobre autos. Mecanico en vivo. Consulta tus preguntas. Ojeda motorsWhat Does Code P0171 mean? “Code P0171 – system too lean bank 1” means there is too much oxygen or too little fuel in the exhaust, which is referred to as a …Oct 24, 2016 ... First the MAF sensor was bad, so I replaced it. Also, it was time to replace the cats, so I did that. After all of that work I got two new codes ...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 …Sep 30, 2014 ... I'm getting the same DTC on my scan tool, P0171 ... 2006 Chevrolet Equinox LT AWD. -. Maintenance ... 2006 Chevrolet Equinox. -. Maintenance & ...One of the most common trouble codes with the Chevy Cruze is P0171. It indicates that your Chevy Cruze is running lean on the bank one side. It’s the most common air/fuel mixture-related code. ... Read more at: OBD-II Trouble Code: P0300 Random/Multiple Cylinder Misfire Detected "Don't just drive CRUZE!" ༼∵༽ ༼⍨༽ ༼⍢༽ ༼⍤༽

In this video we discuss common causes and repair for code P0171. the subject vehicle is a 2006 Chevy Equinox equipped with the 3.4L engine. Also shown, a 20...

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 ...4 posts · Joined 2019. #1 · May 30, 2019. Good afternoon. I’ve been looking for help all over. 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 ... 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 ... Updated: March 17, 2023. A P0171 code appears in the engine control unit when the oxygen sensor on bank 1 recognizes too lean of an air-fuel mixture for the sensor to correct it. …Problem is, you aren’t sure how to fix Silverado P0171 problems in your Chevy truck. Not to worry, because today I’ll be showing you how to clear your Silverado check engine light and fix your P0171 trouble code. The P0171 GM OBDII DTC Trouble Code relates to the Powertrain Control Module (PCM) seeing too much air from the …Feb 18, 2020 ... Fixing DTC Code P0171 on a 2014 Chevy Cruze 1.4L Turbo Jeanine's car has been having some issues with the check engine light coming on and ...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.

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Trouble Codes. P Codes (Powertrain) P0100 - P0199. P0171. SPONSORED LINKS. 1997 cavaleir DTC P0171. RJG71 MEMBER; 1997 CHEVROLET CAVALIER; 4 CYL; FWD; AUTOMATIC; 280,000 MILES; Car runs fine except for a slight miss after operating temp. Has been reached. When you shut car off and it sets for a short period say 10 min. ... I …The P0171 code indicates that the fuel system in part of the engine is running weak or there is a vacuum leak near that side of the engine. This happens when the engine is getting too little gas or too much air. Now let’s go over a bit of Chevy Cruze history. Then we will go into more detail about the P0171 code.The most common causes of codes P0171 and P0174 include: Vacuum Leaks: Vacuum leaks occur when there's an unintended gap or hole in the intake system of the engine, allowing extra unmetered air to enter it. This disrupts the air/fuel mixture, leading to a lean condition and triggering codes P0171 and P0174.Sep 30, 2014 ... I'm getting the same DTC on my scan tool, P0171 ... 2006 Chevrolet Equinox LT AWD. -. Maintenance ... 2006 Chevrolet Equinox. -. Maintenance & ... Hola amigos. Tengo un Chevrolet Onix 2015. Se encendio la luz de servicio y lo hize escanear y dio el codigo P0171. Me dijeron qué podia ser el combustible.despues de unos dias se apagó. Luego se volvio a encender,lo lleve a un taller (Bosch car service) me lo volvieron a scanear y arrojo el mismo codigo. Chevrolet Colorado 2020 2021 SOP May 1, 2021 LGZ GMC Canyon 2020 2021 SOP May 1, 2021 LGZ Involved Region or Country United States, Canada, Mexico, S. Korea ... Engine Control Module Reprogramming with SPS for DTC P0171 and P0174 0.3 hr *This is a unique Labor Operation for Bulletin use only. Important: ...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 ...Jul 23, 2018 · One of the most common trouble codes with the Chevy Malibu is P0171. It indicates that your Chevy Malibu is running lean on the bank one side. It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. P0171 is a known issue in Malibu’s with ... P0171 indicates that your Chevy Trax is either getting too much air or not enough fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out …PROCEDIMIENTO DE DIAGNÓSTICO EN VEHICULO SONIC CON FALLA, LUZ CHECK (MIL) ENCENDIDA.GSCAN3 DE VENTA EN:MAQUINA DE HUMO DE VENTA EN: www.laredotools.comLAREDO...Bank 1: Now, to be a little more specific, P0171 DTC tells you that bank 1 is the one having the issue. Bank 1 is the engine bank that holds the spark plugs for cylinders 1, 3, and 5 (V6 4.3L). Cylinders 1, 3, 5, and 7 (V8 5.0L, 5.7L). This bank is the one on the driver side of the engine. Bank 2: A P0174 DTC tells you that bank 2 is the one ...Jan 27, 2021 · This article will therefore deal with code P0171 as it applies specifically to GM vehicles. OBD II fault code P0171 is a generic trouble code that is defined as “System too lean – Bank 1” and is set when the PCM (Powertrain Control Module) detects an air/fuel mixture that is too lean on bank 1. Note that in the context of this code ... ….

Descripción del código de falla P0171. Este código de diagnóstico de problemas (DTC) P0171, es un código genérico del tren motriz, y es aplicable a todas las marcas y modelos de vehículos. Suele implicar que un sensor de oxígeno en el banco 1 ha detectado una condición de mal funcionamiento, es decir, demasiado oxígeno en el escape.4 posts · Joined 2019. #1 · May 30, 2019. Good afternoon. I’ve been looking for help all over. 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 ...May 25, 2022 · 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. They replaced the valve cover, camshaft cover and the intake manifold. Also the found a missing pcv hose and replaced it. The codes that they found were p0171,p1101, and p0108. All of this was replaced under the power-train warranty. I was told this is a common problem and they have updated what they replaced so it shouldn't happen …In this video Miss Marie has a look at a Chevy Sonic that comes in with the engine light on and has a lean code stored in it. This is her first diagnosis she...Subject: Information on Malfunction Indicator Lamp (MIL) Illuminated - DTC P0171 Set This Bulletin replaces PIP5197M. Please discard PIP5197M. Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Buick Encore 2013 2019 1.4L (LUJ, LUU, LUV) Cadillac ELR 2014 2017 Chevrolet Cruze 2011 2016 Sonic 2012 2019 Trax 2013 2019 Volt 2012 2015What Is a Chevy Cruze P0171 OBDII engine code and what are the fixes?Read here for more information: https://www.backyardmechanic.org/what-is-a-chevy-cruze-p...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 …Aug 8, 2015 ... Fuel trim system lean bank 1 could be caused from an air leak in the intake, or bad Heated oxygen sensor. You may try changing the air filter, ...Code P0174 Chevrolet Description. The Engine Control Module controls a Closed Loop air/fuel metering system to provide the best possible combination of drivability, fuel economy, and emission control.The ECM monitors the Heated Oxygen Sensor (HO2S) signal voltage and adjusts the fuel delivery based on the signal voltage while in Closed … Dtc p0171 chevrolet, Open the hood after turning off the engine and removing the ignition key from its switch. Locate the MAF sensor 1 on the passenger side of the vehicle; it will be on the pipe leading from the air ..., Jul 27, 2018 · One of the most common trouble codes with the Chevy Aveo is P0171. It indicates that your Chevy Aveo is running lean on the bank one side. It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. , The P0174 code means that more air than gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0174 is set in along with the P0171 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., Jul 10, 2018 · Oxygen Sensor. The P0171 code is thrown when the bank one sensor one O2 sensor reports that your Silverado’s engine is running lean. The sensor on or right after the exhaust manifold is typically the sensor that reports the lean condition. If it is malfunctioning, it can cause a false P0171 code. Swap Test. , Descripción del código DTC P0171 CHEVY Chevy. El código P0171 en un modelo chevy indica que el O2 (Oxygen Sensor) situado en el banco 1, ha detectado que existe una condición pobre, es decir que el Sensor de oxigeno (O2) encuentra un exceso de oxígeno en la mezcla aire/combustible. El banco 1 se refiere al lado del motor que tiene el ... , PROCEDIMIENTO DE DIAGNÓSTICO EN VEHICULO SONIC CON FALLA, LUZ CHECK (MIL) ENCENDIDA.GSCAN3 DE VENTA EN:MAQUINA DE HUMO DE VENTA EN: www.laredotools.comLAREDO... , This particular Cruze is a 2012 1.4 Turbo but this procedure is very similar to allot of Chevy ans other years Cruze's.Recently I had been felling the car ru..., Feb 19, 2020 · Blasirl. 15883 posts · Joined 2015. #2 · Feb 18, 2020. Welcome Aboard! A code P0171 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the ... , Fuel trims and Equinox P0171 or Terrain P0171 trouble code. A P0171 FUEL METERING TOO LEAN code can mean the engine is getting too much unmetered air or too little fuel. So you want to see if the PCM is trying to add fuel. Refer to the short and long term fuel trim data on your scan tool. Short term fuel trims should vary as your drive the vehicle., Nov 27, 2018 · Fuel trims and Equinox P0171 or Terrain P0171 trouble code. A P0171 FUEL METERING TOO LEAN code can mean the engine is getting too much unmetered air or too little fuel. So you want to see if the PCM is trying to add fuel. Refer to the short and long term fuel trim data on your scan tool. Short term fuel trims should vary as your drive the vehicle. , 2013 Malibu P0171 (Lean in Bank 1) causes. The other day, I had my oil & filter changed and all went well -- fast forward about 150 miles of driving and the car throws an engine light right as I pull into my destination. Haven't noticed any change in performance at all. Popped the hood and my dipstick wasn't properly set in place so there was ..., Feb 19, 2020 · Blasirl. 15883 posts · Joined 2015. #2 · Feb 18, 2020. Welcome Aboard! A code P0171 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the ... , Oct 21, 2020 · =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈===== How to Fix P0171 =====Engine Code P0171 Saving Repair... , It is also one of the most common codes. The most common causes of P0171 are a bad Oxygen sensor, a vacuum leak, or a dirty MAF sensor. P0171: Fuel Trim System Lean (Bank 1). Check engine light, decreased fuel economy, misfire, hard to find idle. Dirty MAF sensor, vacuum leak, O2 sensor., The P0171 engine code is a code that produces a Check Engine Light on your dashboard. It's your vehicle's Power Control Module (PCM) notifying you that your engine is running too lean in bank 1. When it comes to engines, bank 1 is usually the one that has the front-most cylinder., , , 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 …, P015B - 02 sensor delayed response, lean to rich (bank 1 sensor 1). This is probably the most common one, has appeared multiple times. P0299- Turbo underboost condition (only appeared once) P1101 - Mass Air Flow sensor out of self test range (only appeared once) P0496 - EVAP emission system high purge flow (only appeared once) …, Apr 5, 2019 ... Comments494 ; P0171 Trouble Code: System Too Lean Bank 1 Diagnosis. Big Dog50001 Automotive · 2.5M views ; Chevy Cruze P0171 - Rough Idle - ..., May 17, 2023 · It receives data from various sensors and uses it to control the fuel delivery system, ignition timing, and other engine functions. If the PCM detects an issue with the fuel system or air/fuel mixture, it may set a P0171 code. The PCM will also store the trouble code and freeze frame data, which can be used to help diagnose the issue. , One of the most common trouble codes with the Chevy Malibu is P0171. It indicates that your Chevy Malibu is running lean on the bank one side. It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. P0171 is a known issue in Malibu’s with ..., P0171, P0174 GM vehicles GM has issued service bulletin #PIP5549 to address trouble codes P0171, P0174 on GM vehicles listed below. ... fostering a collaborative space for an exchange of knowledge and camaraderie among Chevy Colorado and GMC Canyon aficionados., What Is P0171 Chevy Code. The P0171 is a diagnostics trouble code that indicates a problem with the lean air to fuel mixture on bank 1. Meaning that either bank 1 …, It is also one of the most common codes. The most common causes of P0171 are a bad Oxygen sensor, a vacuum leak, or a dirty MAF sensor. P0171: Fuel Trim System Lean (Bank 1). Check engine light, decreased fuel economy, misfire, hard to find idle. Dirty MAF sensor, vacuum leak, O2 sensor., CODE P0171 EXPLAINED ON CHEVY, CHEVROLET, GMC, BUICK, CADILLAC ENGINE LIGHT ON Great Car Scanner: https://amzn.to/2QmNBri Check out our Amazon Store for t..., What Does Code P0171 Mean? OBD II fault code P0171 is a generic code that is defined as P0171 – “System Too Lean Bank 1”, and is set when the PCM (Powertrain Control Module) receives input data from the #1 oxygen sensor or air/fuel ratio sensor on bank 1 indicating that the air/fuel mixture has been too lean for an extended period of …, At more than 100 years old, Chevrolet is one of the best-known car brands in the United States. From the old vintage models to perennial classics, here are 13 of the most popular a..., Code P0171 2014 Chevrolet Silverado 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 ..., In this video we discuss common causes and repair for code P0171. the subject vehicle is a 2006 Chevy Equinox equipped with the 3.4L engine. Also shown, a 20..., Chevrolet made Vortec engines beginning in 1986, and as of 2014, these engines are still available. However, General Motors is creating products under the Vortec name now. The firs..., P0171 is a lean code caused by a vacuum leak, mass airflow failure, faulty PCV valve, or low fuel pressure. What causes code P0171 in a Chevy? A vacuum leak, which brings more air into the air-fuel mixture, or a poor fuel system that does not inject enough fuel into the air-fuel mixture, can cause lean conditions in a Chevy., The speedy 1965 Chevrolet Nova SS had options like upgraded suspension components and sintered metallic brake linings. Learn more about this Chevy. Advertisement Perhaps the toughe...