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 …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 ... 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.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. …P0174 ford f150 code obd p0171 x5 e53 source xoutpost resolved bmw Truck codes p0171 p0174 engine check light bou. P0356 ford f150 What are the causes for p0305 ford f150 and how to fix them? P0174 ford f150 code obd p0171 x5 e53 source xoutpost resolved bmw Truck codes p0171 p0174 engine check light bou. Fix Engine. Home;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 …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 ...The code P0171 means the engine air-fuel mixture is too lean or too rich. It can cause engine problems such as stalling, rough idle, knocking, or low fuel pressure. The web page explains how to diagnose …P0171 indicates that your Dodge Ram 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 ...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.A 4 Cylinder has only Bank-1. Possible Causes of a Ford P0171 Code: Dirty Air Filter Mass Air Flow Sensor (Codes P0100, P0101, P0102, P0103, P0104) Clogged …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 ...Location: Houghton, MI & Chicagoland. Re: 2002 ford F-150 Code P0171. by Chris's FX4 » Wed Nov 13, 2013 10:52 pm. Try cleaning the MAF first and check the PCV valve itself. Follow the PCV line from the valve on the passenger side valve cover to the back of the intake. There's an elbow back behind the intake up under the firewall, its hard …P0171 indicates that your Dodge Ram 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 7, 2018 · 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. If your vehicle was a full-size pickup, like the Ford F-150, expect that number to rise to $500. Fuel injector cleaning services can go for between $100 and $200. 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.This 2004 F-150 has leaned codes P0171 and P0174. Having both codes indicates that whatever is causing these lean codes is affecting both sides of the engine...Your Ford's clutch switch, known as the neutral safety switch, prevents the vehicle from being started in gear. This safety feature is designed to avoid costly damage to your vehic...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...Dec 29, 2018 · P0171 indicates that your Ford Crown Victoria 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 ... 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.I had a fuel smell and and engine miss. codes p1450,p0136,p0156,p1131. P0171 ford f150 code fix P0022 ford f150 5.4 code ford p0171 codes 1999 f150 sensors p0135 o2 How to replace maf sensor on ford f150 fix lean codes p0171 p0174Jun 30, 2022 ... Share your videos with friends, family, and the world.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 ...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 ... El código P0171 Ford en español es bastante habitual en las camionetas y nos indica que el sistema es pobre. Es decir, se está dando una combustión incompleta con mezcla inadecuada de aire y combustible. Revisa todas las comprobaciones que te hemos indicado en este artículo para intentar solucionar el aviso de code P0171. El código P0171 Ford en español es bastante habitual en las camionetas y nos indica que el sistema es pobre. Es decir, se está dando una combustión incompleta con mezcla inadecuada de aire y combustible. Revisa todas las comprobaciones que te hemos indicado en este artículo para intentar solucionar el aviso de code P0171. OBD-ii Code P0171 definition: Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. Note: This DTC is very similar to P0174, and in fact your vehicle may show both codes at the same time. If your vehicle was a full-size pickup, like the Ford F-150, expect that number to rise to $500. Fuel injector cleaning services can go for between $100 and $200. 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 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 ... Oct 9, 2018 · 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. contour98. I've had the CEL on for a while and took it to AutoZone and got the P0171 and P0174 codes. The AutoZone guy says that having both of these codes together (and no others) suggests a bad MAF sensor. With the engine running, he disconnected the MAF sensor then after a few seconds connected it again. 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 . The Ford Taurus usually has three engine mounts--one mount each on the left and right sides of the front of the engine, and one mount for the rear of the engine and the transmissio...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 …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.Mar 4, 2021 ... Ford Shelby GT500 Forum. in this thread in ... P0171 System Too Lean Bank 1 Issue resolved ... For a solid year or more id been trying to tackle the ...The P0171 trouble code stands for System Too Lean (Bank 1) which means that the vehicle’s computer has detected insufficient fuel flow or increased oxygen flow in the first bank of the engine and both scenarios lead to ”lean condition”. ... Ford: Yes: $100 – $500: Fiat: Yes: $80 – $400: Peugeot: Yes: $100 – $500: What Repairs Can ...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. …The most common causes of P0171 are a bad Oxygen sensor, a vacuum leak, or a dirty MAF sensor. Definition. P0171: Fuel Trim System Lean (Bank 1). Symptoms. Check engine light, decreased fuel economy, misfire, hard to find idle. Common Causes. Dirty MAF sensor, vacuum leak, O2 sensor.Fuel Injectors. P0171 indicates that your Ford Falcon 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.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...May 6, 2019 · Posted May 6, 2019. 2014 Fusion with 2.0L ecoboost. I occasionally receive the P0171 code (lean bank 1). It may go away for a month and then comes back. Using my odb2 reader, the sort term fuel trim is good but the long term fuel trim is high at idle. At idle it is typically 22 to 27. Under acceleration it appears to drop down a bit. 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...Fuel Injectors. P0171 indicates that your Ford Falcon 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 "Check Engine" light was turned on yesterday on my '98 Expedition EB. I got two codes at the same time: 1. P0171- System Too Lean (Bank 1), and. 2. P0174- System Too Lean (Bank 2). I know either one of these codes can mean something is wrong with air intake, fuel system, or O2 sensor.Whether you already own a Ford vehicle or you want to be a Ford owner, you can find a Ford dealer near you to purchase a car or get service for the one you own. Use these tips to f...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 ... 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. Symptoms: P0171 + P0174 Ford Explorer. 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 Explorer has codes P0174 and P0171.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. Fuel Injectors. P0171 indicates that your Ford Mustang 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.Ford p0174 po171 po174 bank f150 lean system too 2001 ranger p0171 codes egr intake source fault windstar valve air P0174 ford f150 code obd p0171 x5 e53 source ...Originally Posted by seaagg05. I am getting codes P0171 and P0175 on a 2002 F-150 4.2. I have cleaned the MAF and filter, replaced the elbows on the PCV assy and checked for vacuum leaks but couldnt find anything. The truck runs a little rough at idle but doesnt seem to lack any power. It is also hard to start, especially when it has warmed …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 ... 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 …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%...P0171 code ford f150. Solution to my code p0171, p0174 problemP0022 code p0171 ford Ford f-150 5.4l 3v engine: common causes for lean codes p0171 p0174Fixed my codes p0171, and p0174. Ford p0171 p0174 code solution problem forums truckP0022 ford f150 5.4 code ford p0171 codes 1999 f150 sensors p0135 o2 2004 ford …P0171 and P0174 + fuel pressure. I'm trying to figure out the cause for these diagnostic codes. I've replaced the MAF, air, and fuel filters. My fuel pressure read 30 psi at idle, 38 with the vacuum hose removed from the fuel pressure regulator, and 38 at WOT. I got the same readings using both tanks. Although within specs this seems a little ... 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. P0171: význam, příčiny, opravy. Chybový kód P0171 indikuje, že směs paliva a vzduchu je příliš chudá. Může to být způsobeno vstupováním příliš velkého množství vzduchu do motoru nebo nedostatečným množstvím vstřikovaného paliva. Narušení procesu vstřikování se obvykle vyskytne vlivem těchto selhání: OBD-ii Code P0171 definition: Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. Note: This DTC is very similar to P0174, and in fact your vehicle may show both codes at the same time. Jul 27, 2014 ... Here's that vacuum elbo on Amazon for about $10 ...Diagnostic trouble code (DTC) P0174 stands for “System Too Lean (Cylinder Bank 2).”. Your vehicle’s powertrain control module (PCM) will log this trouble code if it detects a lean running condition in the engine’s cylinder bank 2. The usual causes of a P0174 code are outdated PCM software, vacuum leaks, a bad mass airflow sensor, … 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 ... 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 …P0171 fuel ford lean bank too system toyota mixture fault air code causes injection sensor fix car ratio oxygen heated. P0171 code: vacuum leak test on my 2007 mustang gtFord sensor dpfe ranger location egr code codes valve p0171 p0174 lean gas engine v10 p1406 fix p1401 2008 exhaust Mustang ford p0340 code engineSolution to …What Does Code P0171 Mean For Your Ford? Causes Of P0171 Code In Ford Vehicles. 1. Faulty Mass Airflow Sensor (MAF) 2. Vacuum Leaks. 3. Faulty Fuel Injectors. 4. Bad …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. …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...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 ...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%...System Too Lean (P0171, P0174) - Vacuum Leak Quick Test - Ford 5.4 ... This is a Ford Expedition 5.4 with a vacuum leak causing "System Too Lean" trouble codes ...The code P0171 means the engine air-fuel mixture is too lean or too rich. It can cause engine problems such as stalling, rough idle, knocking, or low fuel pressure. The web page explains how to diagnose … Code P0171 Ford - System Too Lean Bank 1 - AutoCodes. Learn what causes this common engine light code and how to diagnose and repair it. Find detailed step-by-step instructions, diagrams, and videos for your specific Ford model and year. Diagnostic trouble code P0171 means System Too Lean (bank 1). That means the car computer noticed the engine is running lean. A lean system means the air …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 ...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 P0171 code is a generic powertrain code that indicates a lean condition in the engine’s air-fuel mixture. In the context of a Ford Ranger, it specifically points to Bank 1 being too lean. This means that there is either too much air or insufficient fuel getting into the engine on the first bank of cylinders.Fuel Injectors. P0171 indicates that your Ford Explorer 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 P0171.2004 - 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.The Ford Focus P0171 code indicates a system too lean condition in bank 1, which means there is an imbalance of air and fuel mixture. Popular Mechanics Magazine provides detailed explanations and guides on car diagnostic codes like this one.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 ...
Fuel Injectors. P0171 indicates that your Ford Ranger 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.. Norwegian cruise drink package
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. 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. Nov 30, 2023 · 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. P0171 indicates that your Ford Crown Victoria 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 ...Oct 2, 2023 · 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. Sep 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 ... 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 ...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 ...The most common causes of P0171 are a bad Oxygen sensor, a vacuum leak, or a dirty MAF sensor. Definition. P0171: Fuel Trim System Lean (Bank 1). Symptoms. Check engine light, decreased fuel economy, misfire, hard to find idle. Common Causes. Dirty MAF sensor, vacuum leak, O2 sensor.Feb 13, 2011 ... I do need to pull & clean the IC, never been done I think, however the motor was replaced by Ford just under 50K miles. I doubt that they ...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.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.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 ...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.Sep 7, 2018 · P0171 indicates that your Ford F150 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 ... If your vehicle was a full-size pickup, like the Ford F-150, expect that number to rise to $500. Fuel injector cleaning services can go for between $100 and $200. 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....