2024 P0171 ford

Taking a look at this escape with the p0171 and p0174, find a leaking fuel injector and change the seals.P0171 code ford f150. P0174 p0171 diagnostic diagnosingP0174 lean failing pcm regulator injectors update P0171 p0174 diagnosing pointsFord trouble code p0611. P2197 code ford mustangFord p0171 and p0174 system lean P0174 code: system too lean (cylinder bank 2)Obd2 codes archives.The most common problems that trigger the P0171 fault code are: Bad MAF (mass airflow sensor) Bad injectors. Bad O2 sensors. Vacuum leak. A malfunctioning or bad PCM. Clogged fuel filter. Weak fuel pump. Bad fuel pressure regulator.El código P0171 es genérico nos da a entender que se ha detectado una condición muy baja en el sensor de ... El código P0171 es común en: BMW, Chevrolet Captiva, Chevrolet Sonic, Chevrolet Trax, Chrysler, Ford Explorer, Ford F-150, Ford Focus, Ford Windstar, Honda Civic, Lincoln, Mazda 3, Nissan, Toyota 4Runner, Toyota Camry ...Lester Glenn Ford is your go-to Ford dealership serving the Asbury Park, Eatontown and Tinton Falls, NJ areas. We can help you find your next new car, get you financing, find you the parts you need, and even service your current Ford vehicle. We have a large inventory of new Ford cars and trucks and used Ford cars in Ocean, NJ.Fuel Injectors. P0171 indicates that your Ford Windstar 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.HI Everyone: This is a 2001 Ford Expedition with a 4.6 liter engine, no complaints from the customer other than the check engine light is on. This video show...Ford DTC P0171. The adaptive fuel strategy continuously monitors the fuel delivery hardware. This DTC sets when the adaptive fuel tables reach a rich calibrated limit. Refer to Section 1, Powertrain Control Software, Fuel Trim for additional information. View the freeze frame data to determine the operating conditions when the DTC was set. P0171 is a diagnostic trouble code (DTC) for "System Too Lean (Bank 1)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154.99 . Ford TSB 23-2195. Some 2021-2023 F-150 vehicles equipped with a 3.3L engine may exhibit an illuminated MIL in the instrument panel cluster (IPC) with DTC P0171 stored in the powertrain control module (PCM). This may be due to the software level of the PCM. To correct this issue, follow the Service Procedure to reprogram the PCM to the latest ...P0171 and P0174 are diagnostic trouble codes that indicate the engine has a lean fuel mixture. They are triggered by the upstream oxygen sensors on the engine bank 1 or 2. …P0171 indicates that your Ford Edge 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. If you have one or more fuel injectors that have gone bad, that can cause ...There may be other very specific (or common) issues that other motorists have experienced with your car. Just Google the codes followed by your car's make and model, for example: "P0171 and P0174 Ford Expedition." As one example, many report that a common cause of the P0171 and P0174 lean mixture fault in the BMW X3 is a faulty …The 1957-1958 Ford Ranchero and Courier pickups were pioneering designs. See pictures and learn about the 1957-1958 Ford Ranchero and Courier. Advertisement The 1957-1958 Ford Ranc...Here’s a breakdown of effective troubleshooting steps for a P0171/P0174 trouble code: Check all vacuum hoses for leaks, including seals, lines, and hoses to ensure they are properly attached and connected. You can either listen for hissing sounds created by escaping air while the engine is running, or use a vacuum gauge if you have access to one.When he put fuel in he car it would stumble and die, I show how to test purge solenoid and replace itJul 7, 2020 · The mass air flow sensor calculates the volume of air entering the engine. If it has gone bad, the air fuel mixture will be off and the P0174 and/or P0171 codes will show. It’ll be located between the air filter and the throttle body. It’s easy to find. It will have a wiring harness plugged into it. Fuel Injectors. P0171 indicates that your Ford Taurus 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.Symptoms: P0171 + P0174 Ford F250. 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 F250 has codes P0174 and P0171.Senior Master Grease Monkey. Supporting Member. Article Contributor. Ford Technician. TRS 20th ...The Ford Motor Company is one of the most iconic and recognizable car companies in the world. It has been around since 1903 and has been producing some of the most iconic vehicles ...When he put fuel in he car it would stumble and die, I show how to test purge solenoid and replace itWhen he put fuel in he car it would stumble and die, I show how to test purge solenoid and replace itSep 10, 2018 · P0171 indicates that your Ford Edge 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. If you have one or more fuel injectors that have gone bad, that can cause ... Sep 25, 2011 · P0171 And P0174 Essentials. P0171: System Too Lean Bank 1. PCM's Adaptive Fuel Strategy has reached its Rich calibrated limit for bank 1. In plain English, this means that the PCM is adding fuel like crazy to even out the air/fuel mixture because it has detected a vacuum leak in bank 1. The vacuum leak may be real or it may be a “perceived ... When dealing with a P0171 code, indicative of a lean fuel mixture in bank 1 of the engine, there are specific repairs that we can consider to resolve the problem. First, we must inspect the air filter and replace it if it is dirty or clogged. A clean air filter is essential for maintaining the correct air-to-fuel ratio.In Elon Musk-like fashion, Ford CEO Jim Farley made bullish claims about self-driving tech and said its next electric truck will drive itself. Jump to In Elon Musk-like fashion, Fo...Ford's got an updated PCV hose for that (rear one in particular) and you can shop online with one of the discount sources or at the Dealer for that one. Generic hose/elbows can be used as well, and aftermarket too. DO need something that works, that's the only requirement.Jan 27, 2022 ... This 2004 F-150 has leaned codes P0171 and P0174. Having both codes indicates that whatever is causing these lean codes is affecting both ...Ford’s F-series of pickup trucks has been around for more than a century, and the model has been among the most popular vehicles for decades. The F-150 has been the best-selling tr...P0171 code ford f150. P0174 p0171 diagnostic diagnosingP0174 lean failing pcm regulator injectors update P0171 p0174 diagnosing pointsFord trouble code p0611. P2197 code ford mustangFord p0171 and p0174 system lean P0174 code: system too lean (cylinder bank 2)Obd2 codes archives.One of the most common causes of the P0171 engine code is a fuel system leak. When your fuel system leaks, more air and less fuel will enter the engine's cylinders. This results in your engine running lean because it can't get the necessary amount of fuel. Another problem with the fuel system is clogged fuel injectors.1999 ford explorer p0171 and p0174 codes / expedition código p0171 Codigo p0174 ford f150 5.4 Con la herramienta correcta encuentras la falla ford f-150 p0171 p0174. Codigo p1000 ford f150. I have a 2014ford f150 3.7. trouble code p0102 p0113. engine seems likeCodes p0171 p0174 ford f150 F150 falla fordHow we fixed codes p0420 & p0430 in a ...P0171 is a trouble code that indicates the engine is running lean due to too much air or not enough fuel. Learn how to diagnose and fix this code with FIXD …2004 - 2008 F150 - Code P0171 and Code P0022 - Hey all, No posts for long time, however in my 2004 F150 with 125,000 on the clock I was driving around and it started bucking and not running well. Shut her down, restarted and it was ok. Then I drove on a bit and it started again, threw a light.P0174 indicates that your Ford F250 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 P0174. It’s unlikely that you’ll see P0171 if this is the case.Fishallot. Diagnostic Trouble Codes (DTCs) P0171 bank (1) (cylinder #1) and DTC P0174 bank (2) indicate the fuel/air ratio is too lean. The fuel adaptive system is at the rich correction limit. DTC P0172 bank (1) and DTC P0175 bank (2) indicate the fuel/air ratio is …F150 5.0 P0171 P0174. For the last few months my truck has been throwing an intermittent check engine light due to the same code every time - P0171. The dealer has allegedly checked everything and has given me the "We have done all we can do" speech. Lead tech even suggested that since today's fuels have alcohol in them, that a check …Popular Mechanics Magazine can recommend trying a few troubleshooting steps to resolve the P0171 code in a Ford F150. One technique is to check for vacuum leaks using a smoke machine or by spraying carburetor cleaner around the intake manifold and vacuum lines while the engine is running. Another suggestion is to clean or replace the Mass Air ...My tuner showed the same P0171 code, so I cleared it to see what would happen. I drove about 40 miles total list night (3 different driving cycles) and it hasn't come back. The filter is brand new, all vac lines connected/capped. Not really sure what caused it but hopefully this was an isolated occurance.Are you in the market for a used Ford F-150? If so, you’ve come to the right place. Finding the perfect used Ford F-150 at the best price can be a daunting task, but with a few tip...Symptoms: P0171 + P0174 Ford Expedition 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 Expedition has codes P0174 and P0171.Meaning. Causes, Symptoms, & Fixes. Causes Identification. Repair Cost. What Does The P0171 Code Mean? Diagnostic trouble code (DTC) P0171 stands for “System Too Lean” (Bank 1). The air-fuel …Mar 23, 2015 ... Do you have a 1996-2006 Ford 4.6L or 5.4L engine equipped vehicle with a check engine light and stored codes P0171 and P0174?Sep 10, 2018 · Fuel Injectors. P0171 indicates that your Ford Transit Connect 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. A P0171 code is set by your vehicle’s powertrain control module when the air-to-fuel ratio is too lean. This means that the engine is receiving too much air into the …Ford tractors can be identified by the serial number that has either been stamped behind the oil filter on the engine block’s left side, on the left side of the transmission case, ...Symptoms: P0171 + P0174 Ford Edge. 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 Edge has codes P0174 and P0171.1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks. Sponsored by: P0171, P0174 96 F-150 5.0. Reply Subscribe . Thread Tools ... The P0171 OBD-II code means that, on the first bank of the engine, the fuel system is running weak or a vacuum …Pueden haber diversas causas por las cuales se registra un código DTC P0171 Ford en un automóvil. Algunas causas pueden ser: Fugas de aire de admisión. Sensores de oxígeno delanteros defectuosos. Fallo en la ignición. Inyectores de combustible defectuosos. Fugas de gases de escape. Presión de combustible incorrecta.Sep 10, 2018 · Fuel Injectors. P0171 indicates that your Ford Windstar 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. The Ford Ranger code P0171 refers to a diagnostic trouble code that indicates an engine running too lean on bank 1. This means that the fuel mixture in the engine is not providing enough fuel for combustion. A lean fuel mixture can lead to a variety of issues, including poor fuel economy, rough idle, and decreased engine performance.To diagnose the P0171 2012 Ford Fusion 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.Fuel Injectors. P0171 indicates that your Ford Windstar 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.Fuel Injectors. P0171 indicates that your Ford Mondeo 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.P0171: betydning, årsager, reparationer. Fejlkoden P0171 angiver, at luft-brændstofblandingen er for mager. Det kan skyldes, at der kommer for meget luft ind i motoren, eller at der ikke bliver indsprøjtet nok brændstof. Forstyrrelser i injektions processen opstår normalt på grund af følgende funktionsfejl: Svigt i brændstof ...Learn what the code P0171 means for Ford vehicles and how to fix it with this helpful video. Expert tips and clear explanations in Spanish.Modular V10 (6.8l) - P0171, System too lean, bank 2 - Hey folks, my truck is having a problem. I have the service engine light on and the code is: P0171, System too lean, bank 2. The guy at autozone cleared the light and said it probably just needed a good run down the interstate. I didn’t think I would be able to...Trouble code P0171 & P0174 on a 2003 F-150 with 4.2L V6. I have cleaned the MAF, changed the fuel filter, looked for vacuum leaks, checked for vacuum leaks with the MAF cleaner (flammable), checked every thread on this forum, had the check engine light reset several times. The truck runs fine, just idles a little high when I first start it ...Jan 15, 2018 ... Another case of P0171/P0174... · 1. Fuel system clogged/dirty. Check/replace Fuel Filter. · 2. Exhaust Leak. Check for leaks at the exhaust ...Jul 7, 2020 · The mass air flow sensor calculates the volume of air entering the engine. If it has gone bad, the air fuel mixture will be off and the P0174 and/or P0171 codes will show. It’ll be located between the air filter and the throttle body. It’s easy to find. It will have a wiring harness plugged into it. Pueden haber diversas causas por las cuales se registra un código DTC P0171 Ford en un automóvil. Algunas causas pueden ser: Fugas de aire de admisión. Sensores de oxígeno delanteros defectuosos. Fallo en la ignición. Inyectores de combustible defectuosos. Fugas de gases de escape. Presión de combustible incorrecta.Jul 21, 2023 · Descripción del código P0171 Ford. Este código es un código de diagnóstico de problemas (DTC) que indica que el sistema de inyección de combustible de su vehículo no funciona correctamente, especialmente en la Serie 1. En pocas palabras, significa que el motor no está recibiendo suficiente combustible para la cantidad de aire que está ... We look forward to assisting you. All American Ford in Point Pleasant. Local Car Dealership Selling New Ford and Used Cars. Serving: Point Pleasant, NJ & Brick, NJ Local Phone: …HI Everyone: This is a 2001 Ford Expedition with a 4.6 liter engine, no complaints from the customer other than the check engine light is on. This video show...P0171 indicates that your Ford C-Max 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 …El código P0171 es genérico nos da a entender que se ha detectado una condición muy baja en el sensor de ... El código P0171 es común en: BMW, Chevrolet Captiva, Chevrolet Sonic, Chevrolet Trax, Chrysler, Ford Explorer, Ford F-150, Ford Focus, Ford Windstar, Honda Civic, Lincoln, Mazda 3, Nissan, Toyota 4Runner, Toyota Camry ...P0171 code ford f150. P0174 p0171 diagnostic diagnosingP0174 lean failing pcm regulator injectors update P0171 p0174 diagnosing pointsFord trouble code p0611. P2197 code ford mustangFord p0171 and p0174 system lean P0174 code: system too lean (cylinder bank 2)Obd2 codes archives.P0171 indicates a lean air-fuel mixture in engine bank 1, causing low power and emissions issues. Common causes include faulty oxygen sensor, mass airflow sensor, PCV system leaks, vacuum leaks, bad air filter, clogged fuel filter, faulty fuel injectors, and exhaust leaks. Symptoms include rough idle, loss of power, misfires, poor acceleration ...Labor: 1.0. To diagnose the P0171 2009 Ford Focus 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 …The most common cause of the P0171 DTC is having an aftermarket intake that is not tuned for. Other common causes include vacuum leaks, exhaust leaks, a clogged fuel system (injector, pump, regulator), or faulty MAF, O2, or fuel pressure sensors. Most often it is an intake or vacuum leak causing the code.P0174 indicates that your Ford Escape 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 P0174. It’s unlikely that you’ll see P0171 if this is the case.Mar 27, 2021 ... P0171,P0172 LEAN BANK 1or 2. The silicone gaskets at the base of the intake to head lose elasticity an sealing. Google the codes and look at ...My problem is the Check Engine Light in on, and I am getting the P0171 code. I have read everything on this forum about eliminating the code, and have performed the following steps: - new fuel filter - no change observed. - new spark plugs - no change. - cleaned MAF sensor - no change.Ford's got an updated PCV hose for that (rear one in particular) and you can shop online with one of the discount sources or at the Dealer for that one. Generic hose/elbows can be used as well, and aftermarket too. DO need something that works, that's the only requirement.P0171 - System to Lean (Bank 1) The Adaptive Fuel Strategy continuously monitors fuel delivery hardware. The test fails when the adaptive fuel tables reach a rich calibrated limit. For lean and rich DTCs: Fuel system. Excessive fuel pressure. Leaking/contaminated fuel injectors. Leaking fuel pressure regulator.Maintenance Shop - P0171 (Bank 1 lean), P0175 (Bank 2 rich) at sametime - Original problem was running rough and no power with codes P0301, P0306, P0305 & P0306. I changed out the ignition coil, and all plugs, verified wires good. Little to no change, still runs rough. I can pull a plug wire off cylinders 1 through 3...Popular Mechanics Magazine can recommend trying a few troubleshooting steps to resolve the P0171 code in a Ford F150. One technique is to check for vacuum leaks using a smoke machine or by spraying carburetor cleaner around the intake manifold and vacuum lines while the engine is running. Another suggestion is to clean or replace the Mass Air ...Re: infamous ford P0171, P0174 ... Basic lean code testing first wants to identify if the problem is sealing or control. Very simple to distinguish between the ...P0016 ford mustang gtP0016 dtc I have 2019 ford mustang gt 5.0l, and dtc is p0300 i replaced theMustang p0174 p0171 codes owner engine. 2015 ford mustang gt (p0300) engine misfire. !!!!!!update!!!!!!! more2015 mustang gt p0308 p0301 misfire P0171 code: vacuum leak test on my 2007 mustang gt2000 ford mustang 3.5 with p0171 & …P0171 code ford f150: meaning, symptoms, & fixesFord f series pickup p0171 p0174 lean condition codes Ford f150 pcv hose vacuum expedition 1998 valve 1999 elbow 4l heated 2001 v8 problem low exhaust 2000 p0174 assemblyTruck codes p0171 p0174 engine check light bought camper pull.Rivian's stock price fell more than 17% Monday, a drop prompted by a CNBC report that Ford was selling 8 million shares of the EV automaker. Rivian’s stock price fell more than 17%...Fuel Injectors. P0171 indicates that your Ford Escape 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.Mar 3, 2021 ... Someone scanned and found p0171 and p0174 and automatically changed the mass air the codes came back. I used a smoke machine and found the ...Symptoms: P0171 + P0174 Ford F150. 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 F150 has codes P0174 and P0171.The P0171 code indicates a lean condition in the engine's fuel system, which can affect performance and emissions. Learn how to diagnose and fix this code with …1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks. Sponsored by: P0171, P0174 96 F-150 5.0. Reply Subscribe . Thread Tools ... The P0171 OBD-II code means that, on the first bank of the engine, the fuel system is running weak or a vacuum …

Apr 28, 2022 · The p0171 is an engine code that can be obtained by scanning using an ODBII scanner. It is not necessarily exclusive to the Ford F150 truck and sees use in other models and vehicles. This code represents a problem in the exhaust system and can be connected to the $7E8 Engine Code. The location of this problem usually stems from the fuel trim ... . Pho stock

Ford cars come in all shapes and price ranges. See pictures and learn about the specs, features and history of Ford car models. Advertisement Ford models come in all shapes and pri...P0171 indicates that your Ford Ka 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. If you have one or more fuel injectors that have gone bad, that can cause the ...Trouble code P0171 & P0174 on a 2003 F-150 with 4.2L V6. I have cleaned the MAF, changed the fuel filter, looked for vacuum leaks, checked for vacuum leaks with the MAF cleaner (flammable), checked every thread on this forum, had the check engine light reset several times. The truck runs fine, just idles a little high when I first start it ...Symptoms: P0171 + P0174 Ford Freestyle. 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 Freestyle has codes P0174 and P0171. 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 ... Causes Of P0171 Code In Ford Vehicles. 1. Faulty Mass Airflow Sensor (MAF) The Mass Airflow Sensor measures the amount of air entering the engine to calculate the proper air-to-fuel mixture. If it’s giving incorrect readings, it can cause the engine to run lean. Hi Ed, P0171 and P174 are fault codes for being too lean (Bank 1 and Bank 2). Are you by chance running a MAFia and, if so, when you returned to ...P0171 – Fuel Trim System Lean → Bank 1: P0171 indicates that the side of the engine with the first cylinder (Bank 1) is running lean. P0174- Fuel Trim System Lean → Bank 2: P0174 indicates that the side of the engine with the first cylinder (Bank 2) is running lean. On inline engines, this code is not available, since there is only one ...P0171 – Fuel Trim System Lean → Bank 1: P0171 indicates that the side of the engine with the first cylinder (Bank 1) is running lean. P0174- Fuel Trim System Lean → Bank 2: P0174 indicates that the side of the engine with the first cylinder (Bank 2) is running lean. On inline engines, this code is not available, since there is only one ...In Elon Musk-like fashion, Ford CEO Jim Farley made bullish claims about self-driving tech and said its next electric truck will drive itself. Jump to In Elon Musk-like fashion, Fo...Sep 7, 2018 · P0171 indicates that your Ford Fiesta 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. If you have one or more fuel injectors that have gone bad, that can cause ... Depending on the engine type, the 2014 Ford F-150 truck has between 302 and 411 horsepower. According to the Ford website, the four engine types include the 3.7-liter four-valve V6...If you’re in the market for a used Ford F150, it’s important to know what to look for when searching for one near you. The Ford F150 is one of the most popular pickup trucks on the...P0174 indicates that your Ford Escape 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 P0174. It’s unlikely that you’ll see P0171 if this is the case..

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