Ford f150 p0171 code

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.

DTC codes P0171 & P0174. I've had DTC P0171 & P0174 (lean in bank 1 and lean in bank 2) for a few weeks now (check engine light cued me on it). Autozone scanned it for me. It's on a 2003 F250 SD 4x4 5.4L. My first step was to clean the MAFS. Light came back on in about 30-40 miles. I then replaced the MAFS. 30-40 miles and the light came back on.Sep 10, 2019 ... 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.Problem codes P0171 and P0174 on a 99 ford f150. Truck is surging while at idle and driving, replaced fuel pump, fuel tank pressure sensor, fuel filter, PCV valve, cleaned the MAF sensor, EGR valve an … read moreFuel 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.2006 F150 4.2l scan codes present P0171, - Answered by a verified Ford Mechanic. ... i have a 1997 ford f-150 i keep getting a code for cylinder 2 misire and system to lean . i have changed the plugs wires and coil pack , also fuel filter .. if any suggestions please let me know ...The entire list of codes minus pending duplicates): ----- PO102 problem with the Mass Air Flow (MAF) sensor or circuit. A more technical description would be that th... P0171And P0174 99 Ford F150 My truck is a 99 ford f150 and starting to pee me off. The codes are P0171 and P0174(running lean in bank 1 and 2).1997 - 2003 Ford F150 - P0171/P0174 codes. PCV valve? w/pictures - I have a 2001 F150 4.2L that has been throwing P0171 and P0174 codes for a while now. Truck runs fine other than that. I changed the MAF sensor to no avail. Pictures show the PCV valve covered in crud from what I assume is escaping oil. Is this is a...

Maintenance Shop - Code P0171 - Have a 2005 F150 4.2l with a code p0171 I changed up stream and down stream o2 sensors and mass air flow sensor and ran great with perfect idle and nice smooth gas pedal for 3 days and started running sluggish again and then had code p0174 changed upstream and downstream o2 sensors and...P0021 is a common trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Ford F150 can have VVT, and is prone to developing this code. P0021 is a generic OBDII code. This means that it has the same definition regardless of the make or model of the vehicle.Both an air intake issue and/or a fuel delivery issue can cause the P0171 code. The most common cause for P0171 is typically a worn or cracked intake hose or gasket that allows unmetered air to...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...Truck: Ford F-150, 4.9L EFI, 4x4 Regular Cab short bed. 100,300 miles. ... I'm REALLY bummed that the troubleshooting of this issue was abandoned. I am experiencing the exact same problems (codes p0171/p0174, rough start) and am not sure what to start looking for. I was thinking it was fuel related and have so far replaced the fuel filter, but ...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.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.

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.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 ...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. 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 …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. ... It is a 1998 Ford F-150, 5.4L, 4X4 Thanks, XXXXX XXXXX [email protected] ...

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Jan 1, 2016 ... Comments73 ; Every engine part changed, still has P0171 P0174 codes Pt2. Schrodingers Box · 49K views ; Ford F-150 & Expedition 5.4L 3v Triton ...The code P0174 in a Ford F150 indicates a lean condition on bank 2 of the engine. This means that there is an imbalance in the air-fuel mixture, causing the engine to run with too much air and not enough fuel. It can be caused by a variety of factors, including a vacuum leak, a faulty oxygen sensor, or a clogged fuel injector.2004 - 2008 Ford F150 - 2005 5.4 Triton P0171 & P2195 - I have a 2004 F150 5.4L 3v Triton with 131,000 miles on it. It has been running great but I got two engine codes about a week ago. I’m getting a P0171 (Lean on bank 1) and P2195 (O2 bank 1 sensor 1 stuck on lean). They don’t seem to affect performance much, they...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.

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...Ford F150 Forum. The site for Ford truck owners, by Ford truck owners. Skip to content. Quick links. FAQ; F150 Forum. Ford F-150 / F-Series Generations. 1997 - 2003 Ford F-150. ... I have the codes P0171 and P0174. i cleaned the MAF sensor , but the codes keep coming back after around 24 miles.Jan 8, 2017 · 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. 1997 F150 P0171 P0174 Cylinder Bank Lean CodesLink to my Amazon Affiliate Shop: https://www.amazon.com/shop/aaronroseThe code P0174 in a Ford F150 indicates a lean condition on bank 2 of the engine. This means that there is an imbalance in the air-fuel mixture, causing the engine to run with too much air and not enough fuel. It can be caused by a variety of factors, including a vacuum leak, a faulty oxygen sensor, or a clogged fuel injector.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.Updated: March 17, 2023. A P0171 code appears in the engine control unit when the oxygen sensor on bank 1 recognizes too lean of an air-fuel mixture for the sensor to correct it. Several different things could cause this trouble code. Here is what you need to know about the P0171 code.Ford F150 Code P0171; 1998 Ford F150 Problems 1998 Ford F150 Problems could appear in various parts and components. If you are searching for problems with your 1998 Ford F150, there is a number of different issues you… Ford F150 Problems Ford F150 Problems can be headache for owner. Having problems with your Ford F150 can be frustrating and ...1987 - 1996 F150 & Larger F-Series Trucks - P0171 and P0174 + fuel pressure - I'm trying to figure out the cause for these diagnostic codes. I've replaced the MAF, air, and fuel filters. My fuel pressure read 30 psi at idle, 38 with the vacuum hose removed from the fuel pressure regulator, and 38 at WOT. I got the...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...The P0172 code can mean many things depending on how your vehicle is set up. Your car might be displaying several symptoms, such as high pressure in the fuel rail or system, idle problems, black smoke coming from the exhaust, or other problems that may require the assistance of a mechanic. Troubleshooting P0172 on the Ford F150

1997 - 2003 F150 - Will an Exhaust leak cause a P0171 Code ?? - It's been a long time since I have posted here mainly because my truck was wearing a bow tie for awhile:-roll. But my wife was nice enough to tell me the Bow Tie wearing truck was making a funny noise on New Years Day (seems a small drum corps took up...

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.In order to diagnose a P0171 code in your Ford vehicle, you will need an OBD-II scanner to retrieve the code. This code typically indicates a lean condition, meaning there is too much air and not enough fuel in the air-fuel mixture. Some common causes of a P0171 code include a vacuum leak, a faulty oxygen sensor, or a dirty mass airflow sensor.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.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,...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.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 ...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...

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Problem codes P0171 and P0174 on a 99 ford f150. Truck is surging while at idle and driving, replaced fuel pump, fuel tank pressure sensor, fuel filter, PCV valve, cleaned the MAF sensor, EGR valve an … read moreNew 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 ...Problem codes P0171 and P0174 on a 99 ford f150. Truck is surging while at idle and driving, replaced fuel pump, fuel tank pressure sensor, fuel filter, PCV valve, cleaned the MAF sensor, EGR valve an … read more2004 - 2008 Ford F150 - Truck has P0171 and P0174(lean codes) - Had these go off on me yesterday. Truck runs good but has a stumble at certain RPM's; was going to do the plugs soon anyway. I heard that a misfire COULD cause these codes, so I did use a scanner that can display the individual misfire counts for each...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 ...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. 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 …Ford F150 Forum. The site for Ford truck owners, by Ford truck owners. Skip to content. Quick links. FAQ; F150 Forum. Ford F-150 / F-Series Generations. 1997 - 2003 Ford F-150. ... I have the codes P0171 and P0174. i cleaned the MAF sensor , but the codes keep coming back after around 24 miles.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.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...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 ...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. ….

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 ...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. Re: NEED HELP code p0171, not the easy fix. by markgloverville » Thu Feb 04, 2010 12:53 am. A code P0171 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 may cause the MAF to become dirty if the filter is over-oiled.How I fixed my P0171 and P0174 trouble codes on a 2003 Ford F150.Maintenance Shop - 2000 F150 4.2 v6, no start, P0171& P0174 codes - 2000F150, 4.2 v6, 5sp, 2wd, 141,000mi, one owner, never wrecked, fuel at 3/4. Codes P0171 & P0174 are 'System too lean' codes for Bank 1 & 2. The first thing I'll check after work is the fuse for the fuel pump. But no troubleshooting has been done yet...The P0172 code can mean many things depending on how your vehicle is set up. Your car might be displaying several symptoms, such as high pressure in the fuel rail or system, idle problems, black smoke coming from the exhaust, or other problems that may require the assistance of a mechanic. Troubleshooting P0172 on the Ford F150Oxygen Sensor – The P0175 code is thrown when the B2S1 O2 sensor does not register the right amount of oxygen in the exhaust. The computer will still adjust the air/fuel mixture to compensate. A bad O2 sensor will show a lean mixture more often, though. Mass Air Flow Sensor – Your F150’s mass air flow sensor calculates the volume of air ...Popular Mechanics Magazine can recommend trying a few troubleshooting steps to resolve the P0171 code in a Ford F150. One technique is to check for vacuum leaks using a smoke machine or by spraying carburetor cleaner around the intake manifold and vacuum lines while the engine is running. Another suggestion is to clean or replace … Ford f150 p0171 code, [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1]