To find out which type of engine your Ford Taurus has, you can pop the hood and search for a label on the engine. You can also identify the engine type with the 17-digit vehicle id...Sep 10, 2018 · P0171 indicates that your Ford Expedition 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 ... 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 ... 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... 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...Un código P0171 en un modelo Ford puede ser causado por uno a más de los siguientes problemas: Puede haber una fuga de aire de admisión. El sensor de oxígeno O2 delantero puede estar defectuoso. Quizás hay una falla en el sistema de encendido de ignición. Algún (os) inyectores de combustibles pueden estar contaminados o tapados.P0113 is a generic diagnostic trouble code that applies to all OBD-II-equipped vehicles. It indicates a signal coming from the Intake Air Temperature (IAT) sensor that is higher than the manufacturer’s specifications. The IAT sensor is a thermistor with various readings based on air temperature. The powertrain control module (PCM) is ...Sep 7, 2018 · P0171 indicates that your Ford Focus 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 28, 2011 ... A Ford P0171 is a LEAN code for cylinder bank 1, and P0174 is a LEAN code for cylinder bank 2. These codes commonly occur on many Ford vehicles, ... 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... Oct 9, 2018 · P0174 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 P0174. It’s unlikely that you’ll see P0171 if this is the case. P0171 System too Lean (Bank 1) P0174 System too Lean (Bank 2) If a car has a check engine light on and has P0171 and P0174 codes stored, the most likely cause is a vacuum leak. These codes are set by the car’s computer when it sees too much oxygen in the exhaust. Excessive oxygen readings in the exhaust will set lean codes.Oct 26, 2009 ... PO171 is what popped up..too lean..more air then fuel entering the engine. He reset the light, and it came back on after the car had been shut ...Oct 9, 2018 · One of the most common trouble codes with the Ford Expedition is P0174. It indicates that your Ford Expedition is running lean on the bank two side of the engine. P0174 and P0171 (fuel trim lean bank one) are the most frequently seen air/fuel mixture-related codes. If they appear together, it reduces the list of May 25, 2022 · 1. Low Fuel Rail Pressure and Plugged or Blocked Fuel Injectors, Filters, or Pump. Fuel rail: Check the fuel rail’s pressure. If the pressure isn’t high enough, that’s a sign your car isn’t getting the amount of fuel it needs, which can trigger the P0171 code. Fuel injectors , filters, or pump: Check to see if these parts are plugged up ... This article will help you to diagnose diagnostic trouble code P0171 (System Too Lean Bank 1) and/or P0174 (System Too Lean Bank 2) on your Ford, Mercury or Lincoln 4.6L or 5.4L equipped car, pick up, van or SUV. Although you can apply this info to any Ford vehicle with a V6 or V8, this info concentrates on the Ford 4.6L and 5.4L V8 engines.Sep 23, 2021 · When the ECM/PCM is having to add too much fuel based on input from the O2 sensor, the fault code P0171 will be sent to the ECM, which will trigger the check engine light to illuminate. This code could either mean that the oxygen sensor is detecting too much oxygen ortoo little fuel in the mixture. This lack of fuel is known as a lean mixture. 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.P0171 System too Lean (Bank 1) P0174 System too Lean (Bank 2) If a car has a check engine light on and has P0171 and P0174 codes stored, the most likely cause is a vacuum leak. These codes are set by the car’s computer when it sees too much oxygen in the exhaust. Excessive oxygen readings in the exhaust will set lean codes.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.Jul 7, 2020 · 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. Today, we will be discussing the Ford P0171 code, what it signifies, and the steps to rectify it. The P0171 code indicates a system too lean, specifically on bank one of the engine. This imbalance between the amount of air and fuel being received by the cylinders triggers the onboard computer, signifying that the air-fuel ratio is off.2004 Ford Expedition 5.4L P0171 & P0174 Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2004 Ford Expedition 5.4L P0171 & P0174 This topic has 1 reply, 2 voices, and was last updated 8 years, 4 months ago by college man .Here's that vacuum elbo on Amazon for about $10 → http://www.amazon.com/gp/product/B000QUZ568/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&camp=1789&creative=9325&crea...Ford Engine Code P0171 refers to a diagnostic trouble code that indicates a condition of a lean air-fuel mixture on Bank 1 in the engine. This means that there is too much air and not enough fuel entering the combustion chamber, resulting in an imbalance that can adversely affect engine performance.1997 - 2003 Ford F150 - 2001 f150 4.2l w/ codes p0171-p0174 - I just bought this truck 2weeks ago and the damn check engine light just came on with these codes; P0171-P0174. I had a Ford tech on yahoo answers tell me its probably the upper intake gasket. Could anyone tell me more about these codes before I tear my...In this video, I fixed the source of the P0171 code on my 2001 Ford F-150. This code means the O2 sensors detected a lean fuel condition in bank 1 of the eng...The Role of Oxygen Sensors in Identifying P0171 Code. The oxygen sensors are always monitoring how much fuel and air is in the mixture. If there is a vacuum leak, it can cause excess air supply to the engine bay. Then, the O2 sensors will detect a rise in air. Also, broken oxygen sensors can trigger the P0171 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.P0171 2014 Ford Fusion. 2014 Ford Fusion with 2.0L Ecoboost. Car is displaying CEL with a code of P0171. At Idle in Closed Loop LTFT is at 29% STFT is around 0% Downstream O2 is steady at around 0.7 volts Not sure how to read the wideband O2 sensor. At 2300 rpm everything stays about he same.P0171 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 P0171. If you have one or more fuel injectors that have gone …Apr 4, 2012 ... Lean code will cause the ECU to use more fuel to compensate, might explain consumption. Shouldn't smell though, that may indicate a leak, check ...P0171 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 P0171. If you have one or more fuel injectors that have gone …To diagnose the P0171 1997 Ford F150 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.Symptoms: P0171 + P0174 Ford Fusion. 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 Fusion has codes P0174 and P0171.Basically, changed all the plugs and these two codes went away. THE PROBLEM code is P0171 and (P0174). My long term fuel trims for: - Bank 1 are 25%. - Bank 2 are 24%. Basically, the problem is in idle and under 1500 RPMS. The idle is rough. Once over 1500, the long term trims come down to around: - Bank 1 around 6%.Symptoms: P0171 + P0174 Ford Focus. 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 Focus has codes P0174 and P0171.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 … Qué significa code DTC P0171 Ford en español. Este código de falla en las camionetas Ford lo que nos indica es que hay una combustión incompleta. El detector de oxígeno en el banco 1 del motor indica que hay un exceso de oxígeno en los gases de escape. Esto quiere decir que la mezcla de aire y combustible no es la adecuada, interfiriendo ... Sep 10, 2018 · P0171 indicates that your Ford Expedition 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 ... One of the most common trouble codes with the Ford Econoline is P0174. It indicates that your Ford Econoline is running lean on the bank two side of the engine. P0174 and P0171 (fuel trim lean bank one) are the most frequently seen air/fuel mixture-related codes. If they appear together, it reduces the list ofLearn what the code P0171 means for Ford vehicles and how to fix it with this helpful video. Expert tips and clear explanations in Spanish.2004 Ford Expedition 5.4L P0171 & P0174 Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2004 Ford Expedition 5.4L P0171 & P0174 This topic has 1 reply, 2 voices, and was last updated 8 years, 4 months ago by college man .P0174 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 P0174. It’s unlikely that you’ll see P0171 if this is the case.One of the most common trouble codes with the Ford Freestyle is P0171. It indicates that your Ford Freestyle 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 mostTo diagnose the P0171 2006 Ford F150 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 26, 2012 ... P0171 - Fuel trim bank one condition lean. Explanation: The powertrain control module uses the oxygen sensor to calculate the Air/Fuel ratio ...Jonah Oneal. 14092 Answers. SOURCE: getting a code po171 on a '98 ford expedition...O2. CODE PO171 -SYSTEM ADAPTIVE FUEL TOO LEAN. POSSIBLE CAUSE.AIR LEAKS AFTER THE MAF SENSOR OR LEAKS IN THE PVC SYSTEM. EXHAUST LEAKS BEFORE OR NEAR WHERE THE HO2S IS MOUNTED. FUEL INJECTORS RESTRICTED …Nov 21, 2022 ... In this video you will be watching of how to diagnose ang fix a code of P0171 Lean Code for 1999 Ford Explorer.The alternator on your Ford is an electrical generator that recharges the battery while the car is on to power the ignition and electrical systems. When the alternator fails, the v...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 ...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.Here I’m using fuel trim data to pinpoint a vacuum leak on a 2002 Ford Explorer. The check engine light was on with codes P0171 and P0174.Aug 31, 2023 · The Role of Oxygen Sensors in Identifying P0171 Code. The oxygen sensors are always monitoring how much fuel and air is in the mixture. If there is a vacuum leak, it can cause excess air supply to the engine bay. Then, the O2 sensors will detect a rise in air. Also, broken oxygen sensors can trigger the P0171 code. 2004 Bmw 325ci e46 p0171/p0174 and limp mode. I have constant p0171/p0174 on my car and if I’m going 35 and put pedal to the floor it goes in limp mode. Turn off and restart and it’s fine again. I have tore apart the intake system 20x and found nothing. Looks like someone chased this problem before and replaced every boot hose tb and disa.Sep 14, 2023 · Let’s take a quick look at a brief of the P0171 code below. P0171 Definition: System Too Lean (Bank 1) Code type: Generic – P0171 indicates the same problem whether you’re having a Chevy, Ford, or Toyota, etc. Can I drive with the P0171 code? Yes, but you should not drive your vehicle for a long time. Is it easy to fix? Intermediate level. Causas comunes del código P0171. 1. Sensor de oxígeno defectuoso. 2. Sensor de flujo de aire en masa (MAF) sucio o defectuoso. 3. Fugas de vacío en el sistema de admisión. 4. Inyectores de combustible sucios o defectuosos. January 24, 2023 by Jason. One of the most common trouble codes with the Ford Crown Victoria is P0174. It indicates that your Ford Crown Victoria is running lean on the bank two side of the engine. P0174 and P0171 (fuel trim lean bank one) are the most frequently seen air/fuel mixture-related codes. If they appear together, it reduces the list ...Code P0171 indicates Bank 1 of the engine has a lean fuel mixture. P0174 indicates Bank 2 of the engine has a lean fuel mixture. Engine Bank 1 is the same side of the engine as …Sep 7, 2018 · P0171 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 P0171. If you have one or more fuel injectors that have gone bad, that can cause ... Video on diagnosing a 1997-2003 Ford F150 Pickup with the 4.2 engine that has the code P0171, system too lean bank 1, and a P0174, system too lean bank 2.htt...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.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...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...In this video, I show you how I troubleshoot a Check Engine Light (CEL) / Diagnostic Trouble Code (DTC) P0171, System Too Lean Bank 1. The exact vehicle in ...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 P0171.1997 Ford f-150 codes P0171 & P0174 I have a Ford F-150, 4.2L, V6, with about 141,000 miles on it. I replaced the sparks plugs and wires because it had not been done in a year and a half, and the truck was starting to …The Role of Oxygen Sensors in Identifying P0171 Code. The oxygen sensors are always monitoring how much fuel and air is in the mixture. If there is a vacuum leak, it can cause excess air supply to the engine bay. Then, the O2 sensors will detect a rise in air. Also, broken oxygen sensors can trigger the P0171 code.1998 Ford F150 Triton V8 with P0171 and P0174 lean codes that has had every part thrown at it and even the repair shop can't figure it out...But maybe a DIY ...Jul 7, 2020 · 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. Ford codes P0171 and P0174 indicate a lean fuel mixture problem, typically caused by vacuum leaks or a faulty mass airflow sensor. To diagnose and fix these codes, you can start by inspecting the intake system for any cracks, loose connections, or disconnected hoses. Also, check the air filter and clean or replace it if necessary.Sep 14, 2023 · Let’s take a quick look at a brief of the P0171 code below. P0171 Definition: System Too Lean (Bank 1) Code type: Generic – P0171 indicates the same problem whether you’re having a Chevy, Ford, or Toyota, etc. Can I drive with the P0171 code? Yes, but you should not drive your vehicle for a long time. Is it easy to fix? Intermediate level. Jun 16, 2011 · This article will help you to diagnose diagnostic trouble code P0171 (System Too Lean Bank 1) and/or P0174 (System Too Lean Bank 2) on your Ford, Mercury or Lincoln 4.6L or 5.4L equipped car, pick up, van or SUV. Although you can apply this info to any Ford vehicle with a V6 or V8, this info concentrates on the Ford 4.6L and 5.4L V8 engines. Russians are buying more SUVs, and Ford wants a bigger piece of the action. The US carmaker will start producing two 4x4s—the Escape and the EcoSport, in Russia. Local production w...Jul 10, 2021 · The service bulletin for Nissan Maxima dated March 2004 mentions replacing an air/fuel sensor as a solution for the code P0171. Another Ford TSB for a number of late 90-s Ford vehicles describes a problem with MAF sensor contamination where both codes, P0171 and P0174 would appear together. 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 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.Taking a look at this escape with the p0171 and p0174, find a leaking fuel injector and change the seals.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 ...May 22, 2023 · In this article, we’ll discuss the common causes of the P0171 code and provide some valuable tips and tricks to help you troubleshoot and get your Ford F-150 running again. We’ll also provide a table summarizing the most important aspects of this issue. If the P1131 code is caused by a vacuum leak, you can expect it to cost $0 to $200 to fix the issue. But if it’s caused by a bad oxygen sensor or another bad engine sensor, you can expect a repair cost of $100 to $1,000 or more. Due to the number of possible causes of the P1131 code, it’s very difficult to estimate a price …My bro in law, the shade tree mechanic, fixed his crappy running '04 Ford Expedition with this trick. Saved himself a bunch of money (without switching to Ge...Jan 19, 2018 · 67 posts · Joined 2014. #1 · Jan 19, 2018. Engine light came on for the second time in about 2 months, scan it and is for code p0171 system to lean bank 1 (air to fuel mixture ratio), no noticeable symptoms, idles fine and drives fine, first time I reset it second time the light went away on it's own, has anyone experience this symptom and if ... Sep 23, 2021 · When the ECM/PCM is having to add too much fuel based on input from the O2 sensor, the fault code P0171 will be sent to the ECM, which will trigger the check engine light to illuminate. This code could either mean that the oxygen sensor is detecting too much oxygen ortoo little fuel in the mixture. This lack of fuel is known as a lean mixture. 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 …http://1aau.to/h/cmc/Have a check engine light but nothing feels different? Does your check engine code say P0171 Low Fuel Trim? Check out this video to see ...
Jun 16, 2011 · This article will help you to diagnose diagnostic trouble code P0171 (System Too Lean Bank 1) and/or P0174 (System Too Lean Bank 2) on your Ford, Mercury or Lincoln 4.6L or 5.4L equipped car, pick up, van or SUV. Although you can apply this info to any Ford vehicle with a V6 or V8, this info concentrates on the Ford 4.6L and 5.4L V8 engines. . Beam hot chocolate
In the most literal sense, the P0171 code means “System Too Lean (Bank 1).”. This trouble code points to a lean running engine condition on the first bank of cylinders. Keep in mind that even inline engines can have two “banks.”. For example, the first 3 cylinders of an inline-6 are sometimes defined as Bank 1, …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...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 …Ford codes P0171 and P0174 indicate a lean fuel mixture problem, typically caused by vacuum leaks or a faulty mass airflow sensor. To diagnose and fix these codes, you can start by inspecting the intake system for any cracks, loose connections, or disconnected hoses. Also, check the air filter and clean or replace it if necessary.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 P0171 code in a Ford Explorer indicates a lean condition in bank 1 of the engine’s fuel system. This means that there is too much air and not enough fuel being supplied to the …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... Qué significa code DTC P0171 Ford en español. Este código de falla en las camionetas Ford lo que nos indica es que hay una combustión incompleta. El detector de oxígeno en el banco 1 del motor indica que hay un exceso de oxígeno en los gases de escape. Esto quiere decir que la mezcla de aire y combustible no es la adecuada, interfiriendo ... PO171, PO301, PO302, PO303, PO304. system to lean bank 1 all cylinders misfire detected. Main cause, Fixes? ... HOME. ASK A QUESTION. REPAIR GUIDES. ... Ford Ranger 2000 110000 4.0l Hello I Am Getting A Check Engine Lite On And The Code Is A Po171 Po174 Bank1 And Bank2 System Adaptive...P0171And P0174 99 Ford F150 My truck is a 99 ford f150 and starting to pee me off. The codes are P0171 and P0174(running lean in bank 1 and 2). I've done the intake gasket, new pcv pipe behind the intake, new injector assembly kit, new MAF sensor, spark plaugs o2 sensors, fuel pump and a fuel filter.P0171 indicates that your Ford F350 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 P0171 code is a common diagnostic trouble code that indicates a lean condition in the engine’s fuel system. It often points to potential issues with the mass air flow sensor, …The PO171 Ford code can be caused by several factors, including a vacuum leak, faulty oxygen sensor, clogged fuel injectors, low fuel pressure, or a malfunctioning mass air flow sensor. These issues can disrupt the air-fuel ratio, leading to a lean mixture condition.Russians are buying more SUVs, and Ford wants a bigger piece of the action. The US carmaker will start producing two 4x4s—the Escape and the EcoSport, in Russia. Local production w...Sep 23, 2021 · When the ECM/PCM is having to add too much fuel based on input from the O2 sensor, the fault code P0171 will be sent to the ECM, which will trigger the check engine light to illuminate. This code could either mean that the oxygen sensor is detecting too much oxygen ortoo little fuel in the mixture. This lack of fuel is known as a lean mixture. 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 ... Re: P0171 P0174 What I have done and What Next? ... Codes 171/174 are Ox Sensors both banks 'telling you' the intake is running with excess ' ...My bro in law, the shade tree mechanic, fixed his crappy running '04 Ford Expedition with this trick. Saved himself a bunch of money (without switching to Ge...Jun 16, 2011 · This article will help you to diagnose diagnostic trouble code P0171 (System Too Lean Bank 1) and/or P0174 (System Too Lean Bank 2) on your Ford, Mercury or Lincoln 4.6L or 5.4L equipped car, pick up, van or SUV. Although you can apply this info to any Ford vehicle with a V6 or V8, this info concentrates on the Ford 4.6L and 5.4L V8 engines. If the P1131 code is caused by a vacuum leak, you can expect it to cost $0 to $200 to fix the issue. But if it’s caused by a bad oxygen sensor or another bad engine sensor, you can expect a repair cost of $100 to $1,000 or more. Due to the number of possible causes of the P1131 code, it’s very difficult to estimate a price ….