Ford f150 p0171 code

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....

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 ...Last edited by Liborius von Ditfurth; 08-20-2023 at 03:22 AM. 1997-2006 Expedition & Navigator - P0175 Code on a 5.4 Triton - Hello everyone, recently my '04 Expedition decided to throw me a Service Engine Soon light, when I scanned for stored codes it only gave me a P0175 code indicating a rich condition on Bank 2.2004 - 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; …2005 Ford F-150 4.6 motor. 80K miles. Codes P0171, P0174. 2005 Ford F-150 4.6 motor. 80K miles. Codes P0171, P0174. Checked for vacuum leaks including PCV line and elbow. No leaks detected. Cleaned MAF sensor with proper cleaner.Come along as we look into why this 2004 Ford F-150 is setting a P0174 Bank 2 lean.These are the Tools and Parts Needed for this repair:Latest Ford Mass Air ...1997 - 2003 F150 - P0174 code, but no vacuum leak? - On my 99 F150 4.2 v6 5 speed man. 112000 mi. i am getting the p0174 code, bank 2 lean. I have seen alot bout this problem with the left bank or right runnin lean, i have checked for vacuum leaks and tested with vacuum gage. i also compared vacuum to another truck...Sep 28, 2019 · 01-26-2007 11:01 PM. Reply. /. Modular V8 (4.6L, 5.4L) - 4.6 P0174 Code - I've looked around the forums quite a bit. I have not found anyone that has had the same issue. I have a 2000 Expedition with a 4.6, with 175,000 miles on it. What sticks out to me is, I only have the P0174 code, and everyone else seems to have that, AND the P0171 code ... The 02 sensor uses the same terminology. An air leak can cause the P0171, what effect it will have on the 02, I don't know. Perhaps the 02 sensor has caused the lean condition on the bank 1. Other will have to chime in for further help. 1997 - 2003 Ford F150 - Code P0133 and P0171 Same Time - 99 F150 4.2 V6 Manual I don't drive the truck long ...

1997 - 2003 F150 - 2000 f150 4.2 need help P0171, P0174 - 2000 f150 4.2, pulls codes p0171 and p0174 (lean on both banks). Have installed new MAF sensor, replaced intake gaskets. Seems to run ok except idles 'bout 980 RPM. Have checked for vacuum leaks (starting fluid, carb cleaner and water. I will clear codes and...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 …P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the F150. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by aOBD II fault code P0171 is a generic code that is most commonly defined as "System Too Lean- Bank 1", and is set on gasoline engines when the PCM (Powertrain Control Module) detects that the air/fuel mixture is too lean. In this context, "lean" refers to a condition where there is too much air relative to fuel in the mixture.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.P0175 fix. So for the last few months i have had the p0175 bank 2 Rich code. Ive searched and searched fforums and have had it hooked up to machines a few times and noone could find out what was wrong. I noticed on the forums noone would post back and update what the fix was. Soo after replacing alot of stuff i replaced all the bank 2 fuel ...A vacuum leak is one of the most common causes of the P0171 error code in a Ford F-150 engine. This happens when the engine is not receiving the right amount of air or fuel, resulting in an imbalance in …

1997 - 2003 F150 - Help! I have a code p1131 and p0171 - 2003 4.6 f150. I have a code p1131 and p0171. The catalytic converter is glowing red. Also acts like it has a miss when idling and at low rpm. Higher the rpm, it smooths out.....what should I look for to fix?Just bought a 2001 Ford F150 SuperCrew Lariat 5.4L 2WD, 189000 miles, showing trouble codes, P0171 Bank 1 combustion too lean P0136 HO2S-12 Bank 1 sensor 1 circuit no activity P1131 Lack of HO2S-11 sw … read moreVideo 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...In Elon Musk-like fashion, Ford CEO Jim Farley made bullish claims about self-driving tech and said its next electric truck will drive itself. Jump to In Elon Musk-like fashion, Fo...

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Aug 29, 2017 ... Diagnosing check engine light codes for ... How to diagnosis check engine light codes p0171 and p0174 | 2002 Ford F150 XLT 4X4 Extended Cab.I have a P0022, P0171, and P0175 codes on my 04 f150 5.4 ... 04 Ford F-150 SuperCrew 5.4L Started running rough on the way to work. P0022 Code-Intake Camshaft Position Timing-Over-Retarded Bank 2 Possible/likely causes-VCT Solenoid, contaminated VCT (I keep my ...Nov 1, 2017 · Got to work, tightened cap, disconnected battery to reset code. All is good. 4 days later, the CEL returns. OK, I dragged out the code reader and checked the code. P0171. Lean Bank 1. Truck was running good. No driveability issues. OK, purchased a can of CRC MAF cleaner, removed MAF and cleaned. Reset code, all is well. 4 days later CEL returns ... Ford F150 Forum. The site for Ford truck owners, by Ford truck owners ... 97-10) Looking for recent topics? P0171, P0174, P0402. 3 posts • Page 1 of 1. brhtruck New Member Posts: 2 Joined: Sat Apr 10, 2010 1:35 am Truck: 2001 F-150 Location: Sacramento, CA. P0171, P0174, P0402. Post by brhtruck » Sat Apr 10, 2010 1:50 am. I have 3 OBD codes ...

Re: rough idle with P0171 and P0174. by 3FOX » Sat Nov 16, 2013 2:51 am. The codes are set when the long term fuel trim tables go rich out of preset program limits. This can be verified with a Scanner looking at the live data trim table values. The ox sensors keep detecting too much Ox in the exhaust and tells the computer to richen up the fuel.Codes P0171/P0174. by CB3 » Fri Jan 19, 2007 2:55 pm. I have a 2001 F150 4.2L V6 w/ about 85K miles. Took it to the Ford place to have brake work done and diagnose the "Check Engine Soon" light. Was told I need to replace the upper and lower intake gaskets (codes P0171/P0174 - system lean banks 1 & 2) along with the PCV valve.The code is used to diagnose engine issues, such as misfires, emissions, and other problems. The code is stored in the F-150's computer, and can be accessed with a code reader or diagnostic scanner. What Is Code P0171 Ford F150? Code P0171 is a generic OBD-II code that stands for "System Too Lean (Bank 1)."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...If you’re in the market for a used Ford F150, you’ve come to the right place. Finding the best deals on used Ford F150s can be a daunting task, but with a little research and patie...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 ...General F150 Discussion - 1999 Ford F150 P0171 & P0174 code problems - I have a 1999 Ford F150 that keeps throwing P0171 & P0174 code. I have already changed all of the 02 sensors, the mass flow sensor, fuel filter, egr, idle control sensor, checked for vacuum leaks, replaced pcv hose ( there was a hole in the hose)...1997 - 2003 Ford F-150. Looking for recent topics? 2002 f150 4.2 engine codes p0171 and p0175. 2 posts • Page 1 of 1. Troybritten New Member Posts: 3 ... The codes are a p0171 and a p0175 codes The mechanics say they have never seen that before But the saw the codes and are scratching there heads on this. Top. 3FOX Hardcore Ford Truck FanaticAug 29, 2017 ... Diagnosing check engine light codes for ... How to diagnosis check engine light codes p0171 and p0174 | 2002 Ford F150 XLT 4X4 Extended Cab.Jan 6, 2024 · 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... Modular V8 (4.6L, 5.4L) - 2002 F150 Codes P0303, P0316, and P0171 - :-huh:confused:The issue started about three days ago with a slight hesitation and bumpy acceleration. The check engine light came on and then went off.

Last edited by Coleroad; 06-08-2023 at 10:30 AM. 1997 - 2003 Ford F150 - Another 03 4.2 P0171 P0174 thread - Long and short - 03 4.2 with the P0171 and P0174 codes. I changed the isolator bolts two years back and the IMRC bushings. DPFE valve, IAC valve, EGR valve, PCV valve, all 02 sensors, and MAF have all been replaced in the last two years ...

98 F150 4.6L V8 120,000 miles Ok, I had this code pulled from Autozone (only one) after my CEL came on. This same code occurred about 5 months ago.....Cleaned the MAF first time via some excellent instructions found here but didn't help. Replacing the O2 sensor cleared it until about a week ago.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! ... Cleared that fault code. P0171/0174 came back. I have doused everything in carb cleaner and had ZERO throttle/idle surging.1987 - 1996 F150 - P0171 & p0174 - I'm troubleshooting a P0171 & P0174 code on my truck and just wanted to make sure I'm on the right track. My scan tool is pretty basic but I'm hoping I can get this solved without buying a better one (that's in the works) and without guessing. The truck has had performance issues...P1149. Alternator 2 -high input. Wiring, alternator, ECM. P1150. Lack of Upstream Heated Oxygen Sensor Switch Adaptive Fuel Limit Bank 2. Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM. P1151. Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 2.2004 - 2008 Ford F150 - F150 throwing a lot of codes!?! Help - All of the sudden my f150 started running bad. Very sluggish, then I got to a stop light and it sounded like a diesel. Noticed my check engine light was on. Got it home and checked the codes. p0018 p0022 p0171 p0300 p0305 p0307 p0308 p0316 p2198 I don't...1997 - 2003 Ford F150 - HELP codes p0171 and p0174 on 2001 screw 5.4 - Someone please help. I have a 2001 f150 supercrew with the 5.4 and has codes p0171 and p0174. I checked pcv boot behind intake and it was fine. I seemed to feel some air an inch or 2 under the boot though. Could this be the intake gasket or perhaps...I have a 2001 Ford F150 with v8 engine the 5.4 to be exact. Truck has over 220,000 miles on it. I just got it back from a routine oil change a couple days ago and it came back with the following codes: P1405 EGR upstream homes unplugged P0171 System to lean Bank 1 P0174 System to lean Bank 21997 - 2003 Ford F150 - 2001 5.4 P0171 & P0174 Fixed - Hello, I have been a long time lurker and finally had something constructive to post. I have had lean codes P0171 & P0174 for a few years and finally did something about it. I suspected all along that the cause was the intake manifold gaskets. The thought of...1997 - 2003 F150 - 2001 F150 codes P0171,P0174 - I have a 2001 f150 supercrew with the 5.4L and my check engine light came on last night! I check the codes and they are P0171, and P0174 which is lean on banks 1 and 2? Here is my story I had the same codes when my truck hit 95,000 miles and I had 2 missfire codes on #7...

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This is a possible solution to this common code on the early 2000s Ford f150 and E150 trucks and vans. This is done due to TSB Ford issued on the problem. Th...1997 - 2003 Ford F150 - P0171 code - I have a 1997 F150 with 4.6 ltr engine. I am getting one code and this one code only P0171. In my estimation this will eliminate most air leaks behind the MAF, a leaky gasket between the intake manifold and the TB, a leaky gasket between the TB and the EGR, bad fuel filter or pump...2004 - 2008 Ford F150 - 2004 F150 with codes: P0171, P0174, P0191, P0301 - I recently was driving from San Angelo, Texas to Fort Hood, Texas... about a 158mile drive. While driving, my 2004 F150 FX4 started to sputter and felt as if it wanted to shut off and the Emission System Light stays on. The slower i went the...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.Don : ok p0171 and p0174 are lean codes with having both codes I would look for a vacuum leak or the exhaust leaking close to the engine. code p0385 is a little harder. it is a circuit or pcm fault. with the misfire detection part of the pcm. you need to check the wires from the ignition control module to the pcm if the wires are good the pcm ...1987 - 1996 F150 & Larger F-Series Trucks - 1996 F150 4.9l I6 - lean condition code p0171 p0174 w/ freeze frame dats - OK guys, got some lean condition codes in my 96 f150, 4.9l, dual tanks. Codes are p0171 and p0174. Truck stumbles a little off idle sometimes, but otherwise runs strong, no pinging. Plugged in my...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.1997 F150 P0171 P0174 Cylinder Bank Lean CodesLink to my Amazon Affiliate Shop: https://www.amazon.com/shop/aaronrose ….

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. Good luck. I heard this can be many different things. 2004 - 2008 Ford F150 - P0171 and p0174 on 4.6 2005 - Hey guys I recently bought my 05 ...FORD CODE P0171 SYSTEM TOO LEAN BANK 1. EASY FIXIf you have Ford, your engine light is on and you have code P0171 in this video we will explain what often ca...1997 - 2003 Ford F150 - P0171 & P0174 - Yes I know this has been covered 10001 times so I'll appologize in advance. I really dont know much about engines but if I have instructions I can pretty much do it. The CEL is on and throwing codes P0171 and P0174. I have already removed the MAF Sensor and cleaned it.Feb 2, 2010 · 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... Ford 4.6L, 5.4L. System Too Lean Bank 1. System Too Lean Bank 2. Vacuum Leak. Testing Codes: P0171, P0174. Fuel Trim Check. Ford 4.6L, 5.4L. Fuel Trim Check. Chronic Lean Condition. ... when you're troubleshooting a P0171 or a P0174 trouble code is that whatever is causing it, is making the PCM think that too much unmetered air is entering the ...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...Aug 31, 2011 · 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. The P1131 code indicates that the heated oxygen sensor contains a failure in the upstream flow. Therefore, Bank 1 is seen as running lean. P1131 is a manufacturer-specific trouble code that is routinely found with several Ford models. The ECM (Engine Control Module) receives data from the oxygen sensors in the vehicle.2004 F150 codes - cam solenoids? P0171 P0174 P0330 P0316 P2195 P2197. 5 posts • Page 1 of 1. dennis461 New Member Posts: 4 Joined: Sun Nov 27, 2016 5:57 pm. ... 2003 Ford F-150 SuperCrew King Ranch 4x4 Previous trucks: 02 F-150 SuperCrew XLT, 11 F-150 EcoBoost Lariat, 07 Ranger, 01 SuperCrew, 98 SuperCab 4x4 ... Ford f150 p0171 code, 2015 - 2020 Ford F150 General discussion on the 13th generation Ford F150 truck. Sponsored by: 2019 f150 p0172 and p0175 codes in 5.0l V8. Reply ... (MIL) with diagnostic trouble codes (DTCs) P0171, P0172, P0174 and/or P0175. This may be due to incorrect flex-fuel learning, which is often caused by customer refueling habits when …, 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? 1999 ford f150 p0171 and p0174 trouble codes. 5 posts • Page 1 of 1. bdjack New Member Posts: 3 Joined: Sat Oct 25, 2008 6:09 pm., 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%..., Nov 2, 2008 · 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. , Re: rough idle with P0171 and P0174. by 3FOX » Sat Nov 16, 2013 2:51 am. The codes are set when the long term fuel trim tables go rich out of preset program limits. This can be verified with a Scanner looking at the live data trim table values. The ox sensors keep detecting too much Ox in the exhaust and tells the computer to richen up the fuel., 2015 - 2020 Ford F150 General discussion on the 13th generation Ford F150 truck. Sponsored by: 2019 f150 p0172 and p0175 codes in 5.0l V8. Reply ... (MIL) with diagnostic trouble codes (DTCs) P0171, P0172, P0174 and/or P0175. This may be due to incorrect flex-fuel learning, which is often caused by customer refueling habits when …, Vehicle: !998 Ford F150 4.6L. p0171. p0174. commented Aug 27, 2017 by inspector (101 points) yes by not properly controlling egr due to and or venting vacuum ; all of this while engine running. can also cause ac to deflect to defrost vents in some older explorers / mountaineers., 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 ..., 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 ..., 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., 1997 - 2003 Ford F150; Help With Trouble Codes P0171 and PO174; Topic Sponsor. 1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck. Help With Trouble Codes P0171 and PO174. Reply Subscribe . Thread Tools Search this Thread 03-27-2011, 02:40 PM ..., 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., p0401 egr flow insufficient. p0171 system to lean ( bank 1 ). p0174 system to lean ( bank 2 ). common problems that trigger p0401--. Restriction in the EGR passages, usually caused by carbon buildup. The EGR Valve is defective. Lack of proper vacuum or electrical signal to the EGR valve., 3.8 & 4.2L V6 - P0171 and P0174 - I'm at 51,000 miles in a 2003 4.2L F150 and my first check engine light came on. Ran by Autozone and got them to scan for codes. I have the P0171 and P0174, lean on both banks. The thing that gets me is the engine runs fine. No rough idle, cranks fine, holds mph and still has plenty..., Ford 4.6L, 5.4L. System Too Lean Bank 1. System Too Lean Bank 2. Vacuum Leak. Testing Codes: P0171, P0174. Fuel Trim Check. Ford 4.6L, 5.4L. Fuel Trim Check. Chronic Lean Condition. ... when you're troubleshooting a P0171 or a P0174 trouble code is that whatever is causing it, is making the PCM think that too much unmetered air is entering the ..., 2004 - 2008 Ford F150 - P0171 code only, running very rough - I have an 04 fx4 5.4L. I have had a p0171, running lean bank 1 code on, and for a while it was intermittent, on for a hundred or so miles then would go away for a couple hundred miles. I was driving home with 3 other people and a full load of stuff in the..., If both banks are affected, the what alloro suggested is the usual culprit 90+% of the time. 1997 - 2003 F150 - 98 Ford F150 4.6 issues (P0171) - Just received that code last night, I also saw the long term fuel trims on bank 1 spike to 30 bank 2 is in the 20s. These two have been higher than they should be for a while but seem to be getting worse., Ford Expedition Forum. 2nd Gen - 2003 - 2006 . P0171 P0175. Thread starter Gacrkr; Start date Apr 2, 2019; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. ... This all started due to the P0171, P0175 codes as well as P0306 and P0308. Codes were cleared and upon completion the truck was ran for ..., 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..., 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..., The p0171 is an engine code that can be obtained by scanning using an ODBII scanner. It is not necessarily exclusive to the Ford F150 truck and sees use in other models and vehicles. This code represents a problem in the exhaust system and can be connected to the . The location of this problem usually stems from the fuel trim system bank., Learn about the P0171 Ford F 150. Discover common causes, possible fixes, and how to prevent this lean code problem in the future., 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 ..., 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), …, 1997 - 2003 Ford F-150. ... Code P0171 and P0174. 5 posts • Page 1 of 1. jcassidy New Member Posts: 1 Joined: Thu Dec 11, 2008 5:44 pm. Code P0171 and P0174. Post by jcassidy » Thu Dec 11, 2008 5:51 pm. I had the Check Engine Soon light come on for my 2003 F 150. The code was Po171 and P0174. I was told this would require a TSB for the upper ..., Ford F150 FX4: 2004 F150 5.4 Codes P0022 Camshaft Position 2004 F150 5.4 Codes P0022 Camshaft Position Timing Over Retarded Bank 2 - P0171 Bank 1 Too Lean - P0175 Bank 2 Too Rich. Rough idle, low on power., The 02 sensor uses the same terminology. An air leak can cause the P0171, what effect it will have on the 02, I don't know. Perhaps the 02 sensor has caused the lean condition on the bank 1. Other will have to chime in for further help. 1997 - 2003 Ford F150 - Code P0133 and P0171 Same Time - 99 F150 4.2 V6 Manual I don't drive the truck long ..., 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 ..., Modular V8 (4.6L, 5.4L) - 2002 F150 Codes P0303, P0316, and P0171 - :-huh:confused:The issue started about three days ago with a slight hesitation and bumpy acceleration. The check engine light came on and then went off. The vibrations have been getting worse at idle but are smooth sometimes as well. I went to the..., 1997 - 2003 Ford F150 - p0171, p0302 - Trying to figure this one out. I know 0171 is lean on bank one, and 0302 is a misfire on cylinder 2. Replaced spark plug and coil pack on cylinder 2. 2002 f150 5.4 240k miles Engine runs nice and smooth most of the time, but when the code pops up will stumble at an idle, and just..., The P0171 code means that more air than gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0171 is set in along with the P0174 code, it is highly likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the Mass Air Flow (MAF) Sensor., 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., A Ford F150’s fuel tank capacity varies between 23 and 36 gallons depending on whether or not the purchased vehicle is standard or extended range. The Ford F150’s cab style also af...