Ford f150 p0171 code

2000 Ford F150 trouble codes P0171 & P0174. by wrestling4gold » Fri May 01, 2009 6:42 pm. My check engine light is lit up and the trouble codes indicate that the vehicle is running too lean on bank 1 and bank 2. I am not sure what to look for to fix this problem since I cannot pass emissions to get my truck registered.

2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck. P0171 and p0174 on 4.6 2005. Reply Subscribe . Thread Tools ... I had only the p0171 code. My mechanic said the only thing he could find was a leak in the passenger exhaust gasket. He replaced it and cleared the code about 500-700 miles ago and hasn't came back on yet.1997 - 2003 F150 - P0171 Code - Hi, I have a 99 F-150 with about 150,000 miles on it. I am getting a P0171 code from my OBD II port. I had it checked at AutoZone. ... Ford F150 - P0171 & P0174 Codes. 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 …Labor: 1.0. To diagnose the P0174 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.Labor: 1.0. To diagnose the P0174 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.Re: P0171, P0174 and P1443 on 1996 Ford F-150. by MookeOVII » Mon Mar 17, 2008 10:08 pm. I have a '96 F-150, 5.0L, that over the last 2 yrs has kept the 171, 174 codes. After cleaning the EGR, MAF, Changing the intake manifold gasket for the newest upgraded version, switching all three O2 sensors, plus the usual filter changes.OBD-II code P0171, which indicates a lean fuel mixture is fairly common in many vehicles. Find out what it means and learn how it can be solved. ... For example, a P0171 on your Chevy Cruze could be due to a failing PCV system, while the P0171 on your friend's Ford F-150 could be from a clogged fuel injector. Poor fuel mixture is a serious ...On the back of the intake, you cannot see it very well so feel for softness or other signs of an issue. I just thought you should know what your working with. Good luck. 1997 - 2003 F150 - 03' F150 SES Light: code P0171 - The service engine soon light on my 2003 F150 Supercrew 4.6L (225k miles) just came on.496. 52K views 5 years ago. In this video I discuss common causes associated with Ford F series trucks experiencing a rough idle condition and/or codes …

Codes P0171 & P0174. 5 posts • Page 1 of 1. LAFan42 New Member Posts: 1 Joined: Fri Jun 04, 2010 6:59 pm Truck: 1998 F-150 2WD 5.4 Liter. Codes P0171 & P0174. Post by LAFan42 » Fri Jun 04, 2010 7:11 pm. Engine Performance problem 1998 Ford F150 5.4L V8 2WD Automatic 89500 miles I have replaced, spark plugs, MAF sensor (rebuilt), …There are several common engine light codes specifically related to Ford F150 trucks. Some examples include P0171 (System Too Lean Bank 1), P0300 (Random/Multiple Cylinder Misfire Detected), and P0420 …The CEL flashed a couple times so I checked for codes using my Engine Link app and ELM327. No trouble codes but under pending codes I got P0171 (Bank 1 Lean), P0300 (Random misfires bank 1), and P0303 (Cyl 3 misfire). I cleared the codes a couple times and P0171 keeps coming back, but the misfire has moved around to cylinders 4 and 5 (weird ...Ford F-150 / F-Series Generations. ... Code P0171. 13 posts • Page 1 of 1. danir1968 New Member Posts: 7 Joined: Sun Dec 07, 2008 1:55 am Location: Texas. Code P0171. Post by danir1968 » Sat Mar 14, 2009 8:57 pm '02 F150 6 cyl. 4.2 eng. Service Engine Soon light has been on for a couple years now. Usually change a sensor and good to go for ...Labor: 1.0. 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.It indicates that your Ford F150 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. ... Causes of P0174 in the Ford F150. The P0174 code is thrown when something has caused too much air to get into your F150's combustion chamber or the fuel ...A code P0172 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the ...

Here is a breakdown of the oxygen sensors for the Ford F150, 5.4 engine. I will assume that most 5.4 Ford engine have the same breakdown. Please subscribe as...Introducing the Article: “Cracking the Mystery of the 2004 Ford F150 P0171 Code” If you’ve ever experienced the frustrating P0171 code on your 2004 Ford...1997 - 2003 F150 - 97 5.4 F150 codes P0171 and P0174 - Seems like I have a problem common to a lot of others. It started out with a cel and code P0171. I cleared the code and ran it for a couple of days and the cel comes on again half way home from work. Spent the remaining miles taking it out of gear just to keep it...Once the oil has been changed in a Ford F150, if the oil change indicator light on the dash does not reset on its own, then the light should be manually turned off by resetting the...2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck. P0171 and p0174 on 4.6 2005. Reply Subscribe . Thread Tools ... I had only the p0171 code. My mechanic said the only thing he could find was a leak in the passenger exhaust gasket. He replaced it and cleared the code about 500-700 miles ago and hasn't came back on yet.

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2004 - 2008 F150 - Codes P0171 and p0174 - F150 Lariet 5.4 2004 ex cab 82,000 miles CEL came on read the codes P0171 and p0174 Ford store says I need 4 cat converters for 1200.00 hard to believe all 4 went bad at same time any advice did clean Mass Air Flo sensor Truck idles rough and will shut off after several...1. 2. Next. black4v. Regular Member. Posts: 59. Joined: Thu Sep 15, 2005 1:05 pm. Location: Guam. Solved my P0171 and P0174. by black4v » Tue Dec 06, 2005 …2004 - 2008 Ford F150 - Rough idle, pulling codes P0171 and P0174 - First thread on this site, so forgive me if I sound like an idiot. I recently purchased a 2005 XL 4.2L with very low miles (56K) and is in very good condition. ... 2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck. Rough idle, pulling codes P0171 and ...What are the Possible Causes of the DTC P1152 Ford? NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes. Faulty Upstream Oxygen Sensor Bank 2. Fuel pressure high or low. MAF sensor dirty/defective.The most common cause for the type of problem on the lean codes P0171 and P0174 is in most cases caused by a vacuum leak due to a rotted out hose and or a leaking intake manifold. Start with making sure the fuel pressure is with in spec and check in and around the intake for signs of leaking vacuum, take a close look at the PCV supply line as ...

How to fix a Ford P0174 engine code: Fuel Injection System Too Lean Bank 2A lean condition exists if the engine is getting more air than fuel in the cylinder...Inspect your COP boots and wire if you change your plugs, use dielectric grease in the boots and anti-seize on the plug thread. Check these links for possible solutions... OBD-II Trouble Code: P0171 System Too Lean (Bank 1) , OBD-II Trouble Code: P0302 Cylinder 2 Two Misfire Detected. Reply Like. # 3.Learn about the P0171 Ford F 150. Discover common causes, possible fixes, and how to prevent this lean code problem in the future.Descubre cuál es el código de falla P0171 Ford. Síntomas, causas y soluciones! ☝ - Sistema de inyección de combustible demasiado pobre en el banco 1. Motor (P) Red (U) Carrocería (B) Chasis (C) Por Marcas. ... P0660 2001 Ford F150 - Código DTC de falla OBD2. P1102 Ford - Código DTC de falla OBD2. P0476 Ford - Código DTC de falla OBD2.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 ...Vacuum leaks, coils/plugs misfiring, burned valves, etc can ALL set an O2 lean code. The trick is figuring out which one or more is causing it. Maintenance Shop - 2001 f150 5.4l codes p0171 and p0174 HELP!!! - the truck runs fine sometimes but seems to be getting worse. It has died a couple times at stop signs.Labor: 1.0. 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.P0171. by projectsho89 » Sun Mar 06, 2011 3:12 pm. davemx wrote: no your injectors should be fine it might be your o2 sensors. O2 sensors will NOT cause "lean" or "rich" codes! Check for vacuum leaks, dirty MAF sensors, restricted/weak fuel supplies, exhaust leaks adjacent to the upstream O2 sensors, etc.1997 - 2003 F150 - codes P0171 & P0174 '01 F150 4.2 5speed - I had the check engine light come on and went to autozone and had the codes read. P0171 and P0174 both showed up. The truck is a 2001 6cyl (4.2) with a 5 speed stick transmission. The truck has 66,000 miles and I have owned it since it was new. This is my...by CollinsTech » Wed Dec 07, 2005 10:41 pm. If your P0171 and P0174 has gone away---then the intake is not leaking. The bubbling you see is the spray hitting the hot engine. Also, you sometimes hear what sounds like a vacuum leak, but it isn't. If the P0401 is the only code you are getting, then it is not the intake.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.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 …

Apr 11, 2012 · 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.

1997 - 2003 Ford F150 - P0171 and P0301/P0302 After Spark Plug Change - 2003 4.6L V8 220,000 miles The truck was idling rough at first with generic P0300 code. Spark plugs were ashen a bit. I changed all plugs except #4 and #8 way in the back. The truck ran smoothly. The next two days the truck began to idle roughly....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.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.1 / 1. 3.8 & 4.2L V6 - 98 F150 4.2L P0171 code - Have 4,2L with 125,000 miles. Check engine light is on with a P0171 code. When I first scanned the OBD2 there was two codes P0171 and P0174 codes. Changed spark plugs and wires along with a ETC sensor. Cleared codes and drove it few miles, light came back on and P0171 came up....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). 1.2004 - 2008 Ford F150 - rough idle, p0171, 0174 - Hey, I'm new to the site, and have done an extensive search for help with my problem, but none of the results are quite the same as my problem. I have an '04 F-150 with the 5.4l and am getting codes p0171, p0174, p2195, p2197. I read out the meaning of all of them and...Vacuum leaks, coils/plugs misfiring, burned valves, etc can ALL set an O2 lean code. The trick is figuring out which one or more is causing it. Maintenance Shop - 2001 f150 5.4l codes p0171 and p0174 HELP!!! - the truck runs fine sometimes but seems to be getting worse. It has died a couple times at stop signs.The most common cause for the type of problem on the lean codes P0171 and P0174 is in most cases caused by a vacuum leak due to a rotted out hose and or a leaking intake manifold. Start with making sure the fuel pressure is with in spec and check in and around the intake for signs of leaking vacuum, take a close look at the PCV supply line as ...Ford F150 Forum. The site for Ford truck owners, by Ford truck owners. Skip to content. Quick links. FAQ; F150 Forum. Engine / Transmission / Drivetrain. ... 1997 F150 XL 4.6L (6 code engine) P0171 - Running Lean P0303 - Misfire in cylinder # 3 I read through tons of forums, not just ford150.net, to determine how to fix this because I was ...

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"Service engine soon" light came on with the code P0171 - Bank one lean Printout from Autozone Definition Fuel trim bank one condition Explanation ... Truck: 1997 Ford F-150 Fx4. Re: Code P0171 "O2 sensor?" Post by davebok9 » Fri Jan 29, 2010 1:12 am. I had the same code a few weeks ago. I replaced the rubber elbow that is at the end of the ...F150 Codes P0171 / P0174 Information. 58 posts Previous; 1; 2; 3; ajhosmer New Member Posts: 13 Joined: Thu Oct 19, 2017 1:57 am Truck: F150. ... Truck: 2003 Ford f-150 Lariot supercab 4x4 Location: Texas City, Tx. Re: F150 Codes P0171 / P0174 Information. Post by Ironman1960 » Thu Aug 08, 2019 9:37 pm.Here are the most common causes of P0172 in the Ford F150: Vacuum Leaks- With the Ford F150, a vacuum leak is one of the most common causes of the P0172 code.Take a look around and see if you can find a vacuum leak. Here's a great YouTube video on how to find a vacuum leak.; Oxygen Sensor- The P0172 code is thrown when the B1S1 O2 sensor does not register the right amount of oxygen in ...2004 - 2008 Ford F150 - P0171, p0303, p0353 - These are the codes I pulled after I got home from work today. So, I went to the dealership and bought a new COP ($87.42), and replaced it. ... 2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck. P0171, p0303, p0353. Reply Subscribe . Thread Tools Search this Thread 04-06 ...What does the P0171 code mean in a 2004 Ford F150? In a 2004 Ford F150, the P0171 code indicates that there is a lean condition in bank 1 of the engine’s fuel …Labor: 1.0. To 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.I have 2005 f150 I'm getting codes p0190 191 171 and 174 I've replaced fuel pump, frps, fpdm, truck seem to idle ok with - Answered by a verified Ford Mechanic ... P0171, and P0174.So far, I've tried cleaning the MAF sensor, replacing the ... 2000 ford f-150 4.2 after warm up if you accelerate throttle to about 1200 rpm the engine goes to ...Maintenance Shop - 2003 F150 4.6L With P0171 & P0174 Codes - Hello everyone, I bought this truck about two weeks ago from a used car dealer. A few days later I got code P0301 for a misfire on Cylinder #1 so we replaced the coil pack. I know I need new spark plugs since we checked them and they are pretty rough (are...Ford F-150 / F-Series Generations. 1997 - 2003 Ford F-150. If you shop at Amazon.com (for anything), use this link to help support FordF150.net! Looking for recent topics? P0171 lean code again. 6 posts • Page 1 of 1. SRT92 Regular Member Posts: 28 Joined: Sat Aug 22, 2015 8:28 pm Truck: 2003 FORD F150 STX. P0171 lean code again.The P1506 code means that the engine idle is out of factory specification. Sometimes the Idle Air Control (IAC) may have carbon built up. Disconnect the car battery, remove the valve, clean, re-install valve, and drive the vehicle for about 5 minutes with the headlights and A/C ON to get the idle relearned. Also, check for intake leaks or stuck ...P 0174, p0171, p0401 Problem solved. Just a quick posting to thank the F150 forum for being there. After experiencing the above "System too Lean" codes and "EGR flow insufficient" I read nearly every entry on solving this problem for my 2002 F150 4.2L. This truck has 252,000 miles on the odo, and still gets 19MPG, but when pulling a trailer I ...Jan 29, 2022 ... The lean code was probably just the isolator bolts. Super common problem. No need to pull the lower manifold. Extra work. ….

Ford Factory Service Bulletin OBDII Code P0171 2004 FORD F150 P0171, P0174, P0301, Misfire, and Lean Condition. ... P0171 Ford Code - Fuel Injection System Too Lean Bank 1. How to Fix. Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent ...runinning 28-30. Then your fuel PSI is low, yours should be: Engine running 28-50 psi. Key on engine off 35-45 psi. This could be due to a bad pump or a bad or leaking fuel regulator. Low PSI can set a P0171 lean code, so I would focus on solving this low pressure issue.General F150 Discussion - P0171 & P0174 Lean Codes 4.6 F150 - I have a 2006 F150 Super Crew that has 187,000 mile on it. I bought the truck with 3 miles on it, so I know the history of the truck. Off and on, for the last year, I have had an engine light come on. Codes started out as P0171, then P0174, then both codes...Diagnosing and repairing the P0401 Code on an 08 Ford F150 with the 4.6l V8 engine.Don't forget to connect with me on Facebook:https://www.facebook.com/Salem...2001 f150 4.2L P0171 & 174. ... I have a 2000 f150 an was causing trouble codes for maf to appear ! Replaced mac couple times not long inbetween to change the iAt in intake duct system an no more problems with service engine light returning ! ... Ford Forum is a community to discuss all things Ford. Check out our discussions on the Ford Escape ...Codes P0171 and P0174 1999 F-150 V6. 5 posts • Page 1 of 1. gbradcsi Regular Member Posts: 35 Joined: Tue Mar 22, 2005 1:07 pm. Codes P0171 and P0174 1999 F-150 V6. Post by gbradcsi » Mon Jun 11, 2012 11:35 am. ... Return to "1997 - 2003 Ford F-150" ...What does the P0171 code mean? A Code P0171 or system too lean bank 1 means either too much oxygen or too little fuel in the exhaust. This is a 'lean' condition or a 'low fuel trim' code. The P0171 OBD-II code indicates that the fuel system on the first bank of the engine is weak or that a vacuum leak exists near this side of the engine. A lean state happens when the engine receives ...How I fixed my P0171 and P0174 trouble codes on a 2003 Ford F150.Well, I was looking into this today and decided to pull the codes. The P1506 is gone, and now I have P0171 and P0174. Below is the freeze frame data from the P0171: Calc Load % 43.9 ECT 183 F STFT B1 3.9% LTFT B1 10.2% STFT B2 -2.3% LTFT B2 7.8% Engine RPM 1535 Speed 16mph I really don't know what to make of this data.1997-2006 Expedition & Navigator - P0171 code and long term fuel trim 1 reads high - I have a 99 expedition with the 5.4L. It idles rough and the check engine light is on. When I hooked up my scanner it gave me the P0171 system 1 too lean code. While checking the run time data, I found that the long term fuel trim 1... Ford f150 p0171 code, Modular V8 (4.6L, 5.4L) - Engine shuddering under acceleration; code P0171, P0174 - '03 Expedition Eddie Bauer, 4.6L V8 My Expedition is running extremely rough at idle and under acceleration. The problem is much better at cruising speed, but still somewhat noticable. ... Ford F150 - Codes P0171 & P0174. raviandsonia. 1997 - 2003 F150. 4. 10-15 ..., 1 / 1. 1997 - 2003 F150 - Lean codes P0171 and P0174 SOLVED! - I finally found out what was giving me the codes and engine performance issues. I figured it had to be something simple because during cranking the engine would spin over for over 3 seconds before firing off. I decided to hook up my fuel pressure gauge, and it..., Feb 3, 2016 ... In todays video we tackle a difficult intermittent performance issue with a Ford F150 Pickup. Follow me through the process of pinpointing ..., 2004 f150: rough idle..mass air..fuel filter o2s 1&2 60..lean. 2004 f150 codes p0171 & 174 p2195 & p2197 rough idle stft 45 ltft 0 cleaned mass air flo changing fuel filter o2s 1&2 60 at idle 2000 rpm read more. Ron., 2004 - 2008 F150 - 04' F150 W/ P0022 and P0171 Codes - I decided to change the oil and filter in our truck along with the air filter one evening before a road trip. we got in the truck I then went and filled the truck up with gas the went to the local fast food joint to wait in line. while waiting we let the truck run..., Oct 11, 2022 ... Comments14 ; P0171 Trouble Code: System Too Lean Bank 1 Diagnosis. Big Dog50001 Automotive · 2.5M views ; Does the Ranger Still Suck (Air)?! Let's ..., Good morning 2005 Ford F150 with the 4.6 L V8 engine code P0171 engine code P0174 engine code P0191. I know that that is showing Aileen condition. but I know the 191 can be something with the fuel pressure rail sensor or something I haven't seen the vehicle yet I know it could be just a vacuum too., Problem: 1999 Ford F150 truck, 2WD, 5.4L engine. The OBD II system has captured the dreaded P0171 and P0174 codes. "System adaptive fuel to lean" Bank 1 and Bank 2. I have replaced the fuel filter, air filter. I removed and cleaned the MAF sensor. Sometimes these simple steps can clear up these codes...but not this time., Last. Forum Jump. 1997 - 2003 F150 - 2003 Ford F-150 5.4 P0171 P0174 - Put this here to add to the threads on the subject :oval Let my son borrow the truck and it came back with these common codes. I'm going to start with the visual hose inspection and go from there. Truck has 138,000 miles on it. I'll report back what I find :-jammin., Learn about the P0171 Ford F 150. Discover common causes, possible fixes, and how to prevent this lean code problem in the future., Fuel pressure stays 40PSI on the live data even at WOT. 1999 to 2016 Super Duty - 5.4 3v P0171 and p0174 - Looking for some help on my 2005 f250 5.4 with codes p0171 and p0174. I have replaced fuel filter, MAF, Checked for vac leaks by smoke and water test. Any help for things to check would be appreciated., 2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck. 2006 4.6 p0171 and p0174. Reply Subscribe . Thread Tools ... code P0171 is triggered. P0171 Causes. Dirty or faulty mass air flow sensor; Vacuum leaks – PCV hose, vacuum hoses, intake manifold gasket. Weak fuel pump; Clogged or dirty fuel injectors; …, Check engine light P0171 bank 1 mix too lean. The truck began idling rough.Replace the hose in the back of the air intake manifold. When you take it apart an..., 2001 F150 4.2L V6. Tuneup Plugs (finewire if it matters autolite brand), wires, air/fuel filters. 500 or so miles later I started having the issue of 0171 and 0174, cleared it to return again. I'm going to try the MAF cleaner, check hoses, and hopefully not have to do any intake work $$$., Ford F150 Forum. The site for Ford truck owners, by Ford truck owners. Skip to content ... The CEL will come on, sometimes, after a failed start. I pulled the code and it's P0171. I've read on here that a weak fuel pump can cause the hard to start problem. ... The P0171 is the 02 reading lean and in order for the 02 to start reading they need ..., 1997 - 2003 F150 - 2001 F-150 idling rough. P1131, P1151, P0171, P0174 - a friend of mine's 02 f-150 starting idling bad and he said the check engine light came on like 7 months ago so i checked the codes and came up with P1131, P1151, P0171, P0174. this says that the truck is running too lean, but what i'm wondering..., Share. 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 Engine Cylinder 1. Engine Bank 2 is the opposite side of the engine. A firing order and cylinder location diagram may be needed to see which side of the engine is ..., Ford F150 Forum. The site for Ford truck owners, by Ford truck owners. Skip to content. Quick links. FAQ; F150 Forum. Engine / Transmission / Drivetrain. Non-EcoBoost V6 Engines - 4.2L (1997-2008), 3.7L (2011-newer) ... My truck gave me the same code's p0171, 1st bank lean. Then a p0174, second bank lean. At the rear of the engine between the ..., New trouble codes P0171,P0401,P0411. 3 posts • Page 1 of 1. ricktur New Member Posts: 13 Joined: Fri Jan 23, 2004 10:49 am. New trouble codes P0171,P0401,P0411. Post by ricktur » Mon Sep 13, 2004 5:04 pm. I have a 1996 Ford F150 with the 4.9 six cylinder engine. A few months ago I had a P0420 trouble code. I was told that this was a ..., 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., The code that is appearing is of course the dreaded P0171 and P0174. Here is what I have done so far. 1. Visually checked for vacum leak(s), and replaced PCV Valve and hoses. ... Is it possible this extra air flow from the CAT filament gone could cause a too lean code P0171 and P0174 to be issued by the Computer? I thought it was strange that ..., P0171 Ford Mustang Causes. The P0171 code is thrown when something has caused there to be too much air or not enough fuel. With that in mind, here are the most common causes: ... Ford F150 P0171: Causes, Diagnosis, + How to Fix. Jason on Mazda 6 P0320: Meaning, Causes, & Diagnosis., 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 ..., 1997 - 2003 Ford F150 - codes p0151 p0171 - Hi. new to this forum and would like your input on these 2 codes im getting....usually i get 171 and 174 but this time im getting 151 wich is my first time for this code...i have a 2002 f-150 4x4 sport 4.2L and i live in the northeast....i only get these codes when its cold..., Dec 6, 2005 · by CollinsTech » Wed Dec 07, 2005 10:41 pm. If your P0171 and P0174 has gone away---then the intake is not leaking. The bubbling you see is the spray hitting the hot engine. Also, you sometimes hear what sounds like a vacuum leak, but it isn't. If the P0401 is the only code you are getting, then it is not the intake. , Maintenance Shop - P0171 and P0174 wont go away. - 2005 f150 5.4 with 130,000 miles. I have p0171 a d p0174 lean codes. I have tried everything I can think of and nothing fixes it. We have tested the injectors ran 44k thru the system, tested o2 sensors, replaced to maf 3 times now, smoke checked for vaccum leak,..., 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..., The consumption of fuel increases whenever there is an issue with the air-to-fuel ratio of the gasoline mixture, not just for the P0172 trouble code in Ford. As a result, the fuel economy becomes much worse, and you’ll have to fill up your fuel tank more often. However, this symptom could also mean a p0022 ford f150., The P0171 code indicates that the oxygen (O2) sensor on bank 1 sent a signal to the engine control module that the air-fuel mixture is too lean to be corrected. The O2 sensors have the ability to correct a fuel mixture of +-15%. If it needs to be corrected more than that, the P0171 code will be stored., Learn how to diagnose and fix the OBDII code P0171 Ford, which indicates a lean condition in the engine. Find the possible causes, symptoms and solutions on AutoCodes.com. , The codes is usually set when there is an intake leak after the air flow meter, before replacing any parts check for loose or broken hoses and intake gasket leak. On Ford some models dirty air filter, and dirty or faulty air flow sensor are the cause of the problem. 2004 FORD F150 P0171, P0174, P0301, Misfire and Lean Condition., P0171 Ford Mustang Causes. The P0171 code is thrown when something has caused there to be too much air or not enough fuel. With that in mind, here are the most common causes: ... Ford F150 P0171: Causes, Diagnosis, + How to Fix. Jason on Mazda 6 P0320: Meaning, Causes, & Diagnosis., 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.