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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.Well, hello everyone. I have a 1998 F-150 and I too am displaying codes P0171 & P0174. After about 10 seconds of a smooth idle then it starts running rough. I, unlike cokerdj will spend 800.00 in parts on this thing. ... P0171, P0174 1996 Ford F-150 4.9L EFI 4x4. Post by ehecoatl » Sun Feb 13, 2011 2:05 am. Gentlemen:Solution to my Code P0171, P0174 Problem. On a long trip in our 2013 E350 Class C motorhome (6.8L V10) I had the notorious CEL accompanied by rough idle and stalling. Long story short, I pulled the codes with my Autel unit and found the P0171, P0174 codes indicating lean condition on banks 1 and 2. After searching the forum I …Gavrin1 wrote: I have a 1999 Ford F-150 V6 and recieving the following trouble codes P0171, P0174 and P0401. I have looked these codes up and cleaned the following items MAF sensor and the EGR valve. I have reset the computer after cleaning each of these parts only to have the check engine light to come back on.1997 - 2003 F150 - Ford F150 - Codes P0171 & P0174 - My F150 check engine light came on and I was able to use a code key to find out the problem codes. P0171 & P0174. There are articles online that show the number of things to check to try to find the cause and fix. Q. I am a novice and have never worked under the...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 ... Seems like it's running fine ,but cannot get anyone to figure out the 172 code rich bank 1 . Had trim codes recalibrated and updated engine computer . 3 times the ... 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 ... P0171 - Lean code cylinder bank 1 on right side (passenger) of a V6 or V8 with rear-wheel drive P0174 - Lean code cylinder bank 2 on left side (driver) of a transverse-mounted V6 with front-wheel drive.Since a four-cylinder has no bank 2, this is not applicable to that engine. These Ford codes are seen when the PCM detects there is too much air in the air/fuel mixture resulting in a ...Introducing the Battle Against the P0171 Code in Ford F150: In this exclusive article, we dive into the notorious P0171 code that has been haunting Ford F150 owners. As a Mechanics teacher, join us as we unravel the mysteries behind this engine trouble and explore the potential causes and solutions.When a vehicle has the fault code P0171, it means that computer can no longer automatically adjust the mixture between air and fuel. Code P0171 applies to 4-cylinder engines (Bank 1) as they generally have only one bank. If you have a V6 or V8 engine you can also get a P0174 code which refers to Bank 2. When the code says that the fuel system ...02' 5.4L F150 Help with code P0171. I've read all the threads on where to find the most common vacuum leaks and checked all the possibilities still not sure if I've pinpointed the problem? Yesterday, just when I thought I'd confirmed no vacuum leaks I heard my pcv valve making an extremely fast rattling/ticking noise while engine running.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 DISA valve. How to Read Your OBDII Computer Codes. Read this tutorial on how to use one particular OBDII …Jul 20, 2022 · To diagnose the P0171 2004 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. 2002 ford f150: scanner..deleted two codes p0171 and p0174..sensors. hello, i have used an obd II scanner on my 2002 ford f150 and deleted two codes P0171 and p0174. I went to smog check it and they said I have to drive it certain amount of time so some of the sensors ...1987 - 1996 F150 - Leaking brake booster, p0171 - 96 xl 5.8l automatic with e4od I have a reoccuring p0171 (obd2, lean bank 1). I have yet to get a p0174 (lean bank 2). I am also experiencing a pinging during heavy acceleration and uphill. I am hoping the two are related so i can kill 2 birds with one stone.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.Sep 30, 2010 · p0171 and p0174 on 5.4 supercharged (SOLUTION) I got the codes p0171 and p0174 on my 03 5.4 Supercharged Harley. I had no drivability issues at all but after cleaning my MAF the codes came back. SOLUTION: I didn't hear any hissing but went ahead and followed the PCV hose that goes to the back center of the engine and removed the. Your car or truck has either a P0171, P0174 lean fault code or both stored in the pc, these codes derive from Oxygen Sensor (O-2) readings. A lean code or codes suggest that there surely is too-much air in the exhaust. Bear in mind parts shops have staff members having good motives nonetheless they may not have the experience necessary to ...A P0171 Code on Your Ford F150 is also called a “system too lean” for Bank 2. This code refers to two separate banks in the engine. The first bank represents cylinders one and two, while the second bank represents cylinders three and four. The PCM will set this code when it sees that the fuel range for these two cylinders is not in line ...1997 - 2003 F150 - Service Engine Soon: P0171 - Hi all. I have a 2002 Ford F-150 5.4l V8, 4x4. Today, the service engine soon light came on. I scanned it, and came up with code P0171 System too lean bank one. I've did some searching and learned that one thing to try might be to clean the mass air flow sensor.What does this mean? Code Tech Notes. If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. If there are no …Maintenance Shop - P0125/P0171/P0174 codes all at once - I have the P0125/P0171/P0174 codes being thrown at the same time. ... Maintenance Shop Keep your Ford F150 truck running strong. Discuss all things maintenance here. P0125/P0171/P0174 codes all at once. Reply Subscribe . Thread Tools Search this Thread 01-30-2011, 10:15 PM ...

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 …1997 - 2003 Ford F150 - The Dreadful P0171 & P0174 Error Code - After tons of searching I would like to make a sticky. My truck is a 99 lariat 4x4 5.4 v8 2 valve.2003 ford f150 4x4 with 5.4. codes p0171,p0175, lean bank1 and 2. also p0302, p0305, p0306. cylinder misfire 2,5,6 have installed new injectors, plugs and coils. rough idle no power on hills, check engine light came on and started flashing. this cond. was happening before i put new parts in. also before all this started to happen, when accelerating then releasing gas peddle i hear a whistle ...Fuel Injectors. 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 P0171.90. 13K views 2 years ago. 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 …

Code Reader shows P0171 and P0174 (Lean on Banks 1 and 2). When the engine gets extremely hot, or has ran for a long time and is shut off, then restarted, it misses and runs like crap for a few seconds, then runs smooth (this happens very rarely, unless I'm driving through a desert or somesuch). 1.Thats because they are around 60%. 1997 - 2003 F150 - Trouble Codes P0171 and P0174 - I have a 2002 F150 4x4 reading codes P0171 and P0174, (fuel system lean banks 1 and 2). The 5.4L has a KN, and a throttle body spacer. I cleaned the MAF with electrical cleaner, and replaced the fuel filter.Your car or truck has either a P0171, P0174 lean fault code or both stored in the pc, these codes derive from Oxygen Sensor (O-2) readings. A lean code or codes suggest that there surely is too-much air in the exhaust. Bear in mind parts shops have staff members having good motives nonetheless they may not have the experience necessary to ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. The code P0174 in a Ford F150 indicates a . Possible cause: 1997 - 2003 Ford F150 - codes p0151 p0171 - Hi. new to this forum and would lik.