Ford f150 p0171 code

Learn about the P0171 Ford F 150. Discover common causes, possible fixes, and how to prevent this lean code problem in the future.

Ford code p0171 and p0174 maf issuesMazda 6 p0171 and p0174 🏝🚘 tip para solucionar el código de falla p0171 en ford f-150 🚘🏝Ford p0022 f150 p0012 code timing codes variable valve vct solenoid 1994. Ford p0171 & p0174 lean codesP0171 ford f150 1998 fix sensor maf P0171 code ford f150: meaning, symptoms, & fixesFord f150 code p0171.1997 - 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 ...The codes, regardless of which one, is detected by the Oxygen sensors. 171 is lean detection bank 1. As excessive oxygen in the exhaust gas. 175 is rich detection bank 2. As to little oxygen left in the exhaust gas after combustion. . 171 shifts the Long term fuel table for bank 1 to the rich side. When it reaches +25% the code is set.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-fuel ratio entering the combustion chamber is not what the engine wants. It means there is too much air or too little gas to balance the specified mixture ratio.I solved my notorious P0171 and P0174 codes. I had to replace the little elbow under the intake and clean the PCV valve. I also installed an air/water seperator between the PCV valve and the intake to collect oil. Now I get PO0401. EGR low flow code. I tested the DPFE sensor and it reads the correct range of volts.I have a Ford F150 4.2 with 90K Miles. I'm getting P0171 and P0174 (Both sides lean). The MAF is new, the O2 sensors look good (sine wave ahead of CAT and pretty flat after CAT). The short term fuel trims are bouncing around from 0-5.5 while the long term values are 8.58 on one side and 7.02 on the other.

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...I have a 05 expedition with 5.4l 3v engine, codes p0171 p0174 keep setting with long term fuel trim at +30%, i've checked for vacuum leaks and found none, ... It is a 1998 Ford F-150, 5.4L, 4X4 Thanks, XXXXX XXXXX [email protected] ...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...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.Feb 21, 2022 · P0171 definition: Bank 1 has too much air or not enough fuel. Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. Diagnosis: It is important to complete the entire diagnostic ... 2015 - 2020 Ford F150 - 2019 f150 p0172 and p0175 codes in 5.0l V8 - Three weeks ago, my truck had a cel occur. After scanning the codes, I found p0172 and p0175 showing rich on both banks 1 and 2. Sure enough, long trim 1/2 were around 23% My first thought was faulty, dirty MAF. Nope, engine doesn't have one. I...1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.

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 ...P0022 Ford F150 can be fatal for your truck's engine if not treated right. Learn more about this common problem here: ... However, it can also lead to trouble codes like p0171 ford expedition. Engine Oil. One of the most common causes of P0022 is dirty and/or low engine oil. For example, if somehow water gets in touch with the engine oil, there ...2001 f150 5.4 code P1047, now P0171. Can't figure this out?! Post by Bigz808 » Fri Jul 27, 2018 5:22 am. 2001 5.4 Idle problems. Rpm revs up and down at idle then shuts off. ... Truck: 2001 Ford F-150 xlt. Re: 2001 f150 5.4 code P1047, now P0171. Can't figure this out?! Post by Bigz808 » Thu Aug 02, 2018 4:51 pm. You were right! The rubber ...Jul 23, 2018 ... 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 ...Nov 24, 2017 · 1. Age. 63. Nov 24, 2017. #1. While DTC code P0171 and its closely related cousin, P0174, are two of the most common codes to afflict Ford F150 models, almost all Ford models are equally likely to suffer the effects of these codes at some point, and particularly Ford applications that have done more than about 60 000 miles or so.

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Ford F150 Forum. The site for Ford truck owners, by Ford truck owners ... Looking for recent topics? Codes p0302, p0174, p0171. 4 posts • Page 1 of 1. tonyward99 New Member Posts: 3 Joined: Tue May 15, 2007 10:29 pm. Codes p0302, p0174, p0171. Post by tonyward99 » Fri Jun 06, 2008 3:48 am. Ok all I have a 2002 F150 V6 4.2 I am getting codes ...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 understood that ...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.

Heres some info from a Ford CD for a 98 Expo H41 DTCs P0172, P0171, P0174 AND P0175: FUEL SYSTEM AT THE CORRECTED FUEL TRIM Diagnostic Trouble Codes (DTCs) P0171 bank 1 (Cylinder 1) and DTC P0174 bank 2 indicate the fuel/air ratio is too lean. The fuel trim system is at the rich correction limit.P0201 is one of the more common OBD-II trouble codes. It indicates that the first cylinder in the firing order has an injector malfunction. It’s generic, which means that it has the same meaning for the Ford F150 as it would for any other vehicle. When the PCM sees voltage at cylinder 1 that is out of the normal operating range, it’ll ...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 ... A heated oxygen sensor (HO2S) indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time. P2197 Ford Code - Oxygen Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1.Aug 21, 2023 ... How to fix a Ford P0174 engine code: Fuel Injection System Too Lean Bank 2 A lean condition exists if the engine is getting more air than ...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.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...Chances are you'll find it early on if thorough. 1997 - 2003 Ford F150 - P0171 & P0174 codes on 2001 5.4 - My truck throws a P0171 code and sometimes a P0174 code when first run at outside temps under 50 deg F. Doesn't happen when first started. Usually comes on at a stop sign after about 5 miles. Once reset, it doesn't come back on unless it ...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 ...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...

Nov 24, 2017 · 1. Age. 63. Nov 24, 2017. #1. While DTC code P0171 and its closely related cousin, P0174, are two of the most common codes to afflict Ford F150 models, almost all Ford models are equally likely to suffer the effects of these codes at some point, and particularly Ford applications that have done more than about 60 000 miles or so.

Definition. Both of these codes are generic, which means they have the same meaning regardless of the vehicle. P0171- Fuel Trim System Lean → Bank 1: P0171 indicates that the side of the engine with the first cylinder (Bank 1) is running lean. P0174- Fuel Trim System Lean → Bank 2: P0174 indicates that the side of the engine with the first cylinder (Bank 2) is running lean.I'm getting codes p0171 and p0174. 2004 - 2008 Ford F150 - 2006 f150 5.4 p0171 - I got a 06 f150 that is consistently throwing a lean code p0171 and sometimes a p0174. When I first got truck it had a issue with running and a new fuel pressure regulator sensor fixed that issue. I've smoked tested for vacum leaks coming off the brake booster hose ...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 ...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...1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.F150 1997 4.6 V8 engine code P0171 and P0174 - Answered by a verified Ford Mechanic. ... Pulled codes P0171 and P0174 on 1997 Ford Crown Victoria with 4.6 liter VIN W. Changed MAF sensor and cleared codes. Completed drive cycle, check engine light did not come back on.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 ...Ford F-150 / F-Series Generations. 1997 - 2003 Ford F-150. Looking for recent topics? F150 Codes P0171 / P0174 Information. 58 posts 1; 2; 3; Next; 3FOX Hardcore Ford Truck Fanatic Posts: 3868 Joined: Mon Oct 22, 2012 2:53 am Truck: 02 F150 SCREW. F150 Codes P0171 / P0174 Information.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), …

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I have a 05 expedition with 5.4l 3v engine, codes p0171 p0174 keep setting with long term fuel trim at +30%, i've checked for vacuum leaks and found none, ... It is a 1998 Ford F-150, 5.4L, 4X4 Thanks, XXXXX XXXXX [email protected] ...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...I have an 02 F150 XLT 4x4. 5.4 engine and I am getting a P0174 code only. Never a P0171, just the 174. Lean bank 2. I have checked all of my vacuum hoses, cleaned the MAF sensor, replaced PCV, replaced fuel filter and sprayed all over engine (especially intake manifold) with carb cleaner.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...Status: Confirmed. Click to search for description on the Internet ... P0082. Intake valve control solenoid, bank 2 - circuit low Status: Confirmed. Click to search for …Feb 11, 2018 · 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.... 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. 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 ...Feb 21, 2022 · P0171 definition: Bank 1 has too much air or not enough fuel. Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. Diagnosis: It is important to complete the entire diagnostic ... 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...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 code again !! 2003 Harley F150. 5 posts • Page 1 of 1. ... darn code P0171 is back again changed both ….

1997 - 2003 Ford F150 - P0171 P0174 codes - i am still having this code i have replaced everything intake manifold gaskets egr valve dpfe sensor checked all hoses did a vacuum test had perfect vacuum i also replaced fuel filter and fuel pump. I did a fuel pressure test fuel pressure was at 35 with engine off with...Jun 28, 2021 ... Tutorial para tomar en consideración cuando se presenta el código de falla P0171 en las camionetas Ford F-150. Debido a que en ocasiones ...1997 - 2003 F150 - 03 F150 5.4L P0171 P0174 code - I have about 45,000 miles on my 03 gas only 5.4L which just started acting up. (Sits around in the garage because I'm retired. Drive it two times a week about 8 Miles only). Replaced DPFE, EGR, EVR, PCV already and inspected the PCV Elbow and hasn't fixed it yet. I...In summary, a P0720 code in a Ford F150 indicates a problem with the output speed sensor circuit, which can cause drivability issues and damage to the transmission. If this code is triggered, it is important to have it diagnosed and repaired as soon as possible. P0720 is a diagnostic trouble code (DTC) that is related to the output speed sensor ...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...P0171 code definition System Too Lean (Bank 1) What the P0171 code means The P0171 OBD-II code means that, on the first bank of the engine, the fuel system is running weak or a vacuum leak exists near this side of the engine. ... Ford Escort L4-2.0L - Check Engine Light is on - Nashville, Tennessee Brandon showed up ahead of schedule, was very ...Jul 20, 2022 · To diagnose the P0171 2008 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. The codes P0190 and P0191 are fuel pressure sensor codes and the codes P0171 and P0174 are lean code and the usually suspect for the problem you describing is usually caused by a drop in fuel pressure usually due to either a failing fuel pump and or a bad fuel pump driver module .The 2004 has known issues with corrosion and moisture getting in ...1997 - 2003 Ford F150 - P0171 and P0304 codes - I have a reg cab 4.6l f150 coding p0171 (bank 1 too lean) and p0304(misfire on cylinder 4). Being the truck is backfiring at the bottom of gears (its a standard), and stuttering in the gear and up hills, I was thinking fuel pump or clogged fuel filter.2004 - 2008 Ford F150 - 2004 F150 5.4 P0171 and P0174 codes - Hi. New to the forum. My beloved truck is giving me fits. Was pulling away from the pump the other day and the truck stalls. My buddy swears he hears something blow out under the hood. I get the thing restarted and I get a check engine light. Ford f150 p0171 code, 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., Jul 23, 2018 ... 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 ..., Let's have a look at this 97 Ford F150 with the classic P0171 "Lean Bank 1" code that seems to happens to these Fords more often than not. Typically it is a ..., 2004 - 2008 F150 - Code P0171 and Code P0022 - Hey all, No posts for long time, however in my 2004 F150 with 125,000 on the clock I was driving around and it started bucking and not running well. Shut her down, restarted and it was ok. Then I drove on a bit and it started again, threw a light. It is running rough at..., Ford F150 Forum. The site for Ford truck owners, by Ford truck owners. Skip to content. Quick links. FAQ; F150 Forum. Engine / Transmission / Drivetrain. All Other Engines - 4 cyl (Ranger), 300 I-6, etc. ... OBDII code P0171. Post by Epistuff » Fri Nov 03, 2006 12:01 am., Sep 7, 2018 · One of the most common trouble codes with the Ford F250 is P0171. It indicates that your Ford F250 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. , 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., Status: Confirmed. Click to search for description on the Internet ... P0082. Intake valve control solenoid, bank 2 - circuit low Status: Confirmed. Click to search for …, How to repair P0174 Ford code Fuel Injection System Too Lean Bank 2. ... If the P0174 is combined with the P0171 code, the problem is likely caused by an intake leak or the Intake Plenum Gasket and seals. ... Ford Factory Service Bulletin OBDII Code P0174 2004 FORD F150 P0171, P0174, P0301, Misfire, and Lean Condition. User …, I'm getting codes p0171 and p0174. 2004 - 2008 Ford F150 - 2006 f150 5.4 p0171 - I got a 06 f150 that is consistently throwing a lean code p0171 and sometimes a p0174. When I first got truck it had a issue with running and a new fuel pressure regulator sensor fixed that issue. I've smoked tested for vacum leaks coming off the brake booster hose ..., 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 ..., Ford F-150 / F-Series Generations. 1997 - 2003 Ford F-150. Looking for recent topics? F150 Codes P0171 / P0174 Information. 58 posts 1; 2; 3; Next; 3FOX Hardcore Ford Truck Fanatic Posts: 3868 Joined: Mon Oct 22, 2012 2:53 am Truck: 02 F150 SCREW. F150 Codes P0171 / P0174 Information., 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 more, 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..., 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 ..., 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..., 2004 - 2008 Ford F150 - P0171 - 2005 Ford F150 4.2 V6 sets P0171 code only.. LTFT B1 reads 29.7 and never changes with rpm's LTFT B2 reads 3.5 + or - and fluctuates with rpm;s FTST B1 READS 5.97 FTST B2 READS 8.22 O2S BANK 1 SENSOR 1 VOLTAGE READS .10 O2S BANK 2 SENSOR 1 VOLTAGE READS .07 Cleaned Maf sensor, checked..., 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., 1987 - 1996 F150 & Larger F-Series Trucks - 1996 F-150 4.9l Dtc P0171 And P0174 - Hello all I just replaced my EGR valve position sensor, both up stream oxygen sensors. And battery. I cleared all the DTC's, then drove 10 miles. The dreaded DTC P0171 and P0174: system too lean came up again. I am thinking fuel pressure..., Ford 4.6 engines all suffer from garbage rubber hoses. The oil in the PCV system degrades the pcv vent line hose rubber and eventually it collapses and restr..., 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., 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., 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" ..., 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: 2002 ford F-150 Code P0171. by Chris's FX4 » Wed Nov 13, 2013 10:52 pm. Try cleaning the MAF first and check the PCV valve itself. Follow the PCV line from the valve on the passenger side valve cover to the back of the intake. There's an elbow back behind the intake up under the firewall, its hard to see unless you're practically sitting ..., 1997 - 2003 Ford F150 - 2001 - P0171 code questions - My son's truck recently had service engine light, I read the code with my cheap little NAPA reader and got a P0171. Did some searching and looks like maybe a vacuum leak. We are not mechanics but can turn a few wrenches. Wondering has anyone experienced this code..., I am in need of help. I have recently purchased a '98 F150. 4.6L V8. Ever since i bought the truck the check engine light has been coming on. I have a way of checking the code and always get P0171. The code reads "bank one runs lean". I have already replaced the O2 sensor on bank one, and all the plugs and wires. the code still continues to ..., 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., SOURCE: 99 CHEVY trouble shoot code P0171. LEAN TROUBLE CODES (P0171 or P0174) A code P0171 or P0174 indicate the engine is running lean. This means there is too much air and/or not enough fuel. You can confirm the engine is running lean by looking at Short Term Fuel Trim (STFT) and Long Term Fuel Trim (LTFT)., General F150 Discussion - P0171 P0174 codes - I have a 2003 Ford f-150 4x4 lariat super crew with 5.4 trition. After changing plugs and coil packs my truck throws the bank 1 and 2 lean but after you drive the truck for a little bit and you stop at a light or stop sign it will cut out like it's not taking gas and..., The issue that triggers and P0345 is a faulty camshaft position sensor A that is in Bank 2 of the engine. By bank 2 it means that the issue Is located in the area of the side of the engine where the second cylinder is. Many reasons could cause problems in camshaft position sensor A, it could be just the sensor itself, but we will be getting ..., Some 2018-2020 F-150 vehicles equipped with a 5.0L engine may exhibit an illuminated malfunction indicator lamp (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 adding only small amounts of fuel, the ..., 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 ...