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Related Ford Questions
I have a '98 Ford F150 XL, 4.2L SPI. IT won't pass
I have a '98 Ford F150 XL, 4.2L SPI. IT won't pass inspection, left and right banks ( system too lean). How can I fix this problem? … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
26,187 satisfied customers
2006 Chevy Silverado 5.3 L I have seven engine codes
2006 Chevy Silverado 5.3 L I have seven engine codes P0171P01722 rich P01712 Lane P0174 bank to lean P017 to bank to system too rich P1516 throttle actuator P2108 throttle actuator control module u010… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
26,187 satisfied customers
Lean fuel code and runs rough in idle, pretty consistent, 05
it has new plugs and the coils that were bad were replaced … read more
Mike S.
Mike S.
Vocational, Technical or Trade Scho
8,467 satisfied customers
hello again i have a 2004 ford expedition with a 5.4 triton
hello again i have a 2004 ford expedition with a 5.4 triton vehicle runs good but i have 2 codes p0171 too lean bank 2 and p0174 too lean bank 1 anything you can help me with on this thanks again dom1… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
26,187 satisfied customers
2004 Ford F150 FX4: 5.4 3 valve triton V-8 engine..Control System
I used an Innova 3100 O.B.D. Device on my 2004 Ford F150 FX4 with a 5.4 3 valve Triton V-8 engine and got the following message "Throttle Actuator Control System Forced Limited Power" Code: P2106 Gene… read more
Marty
Marty
Vocational, Technical or Trade Scho
576 satisfied customers
1998 ford explorer: v..the check engine light came on..mechanic says
I have a 1998 ford explorer v-8 engine eddie baur four wheel drive and the check engine light came on. My mechanic says the code for this is 0174 and that it could be anything. Not sure what to do.… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
26,187 satisfied customers
Check engine light came on today..my 2001 sport..two o2 sensors going
Check engine light came on today on my 2001 sport trac throwing codes P0171 System too lean (bank 1) and P0174 System too lean (bank 2). Is this two o2 sensors going bad at the same time or is there a… read more
lostrider
lostrider
lead technician/working shop foreman
Vocational, Technical or Trade Scho
3,074 satisfied customers
98 Ford contour: 2.0L..MIL..PO171..I check for vacuum leaks
I am working on a 98 Ford contour 2.0L with MIL on. Code I have is a PO171. I check for vacuum leaks cannot find any. It seems to run fine. Except for the occasional stumble upon hard acceleration. I … read more
A. Penland
A. Penland
Ford Senior Master Technician, ASE
Vocational, Technical or Trade School
7,797 satisfied customers
ford f 150: leak..my truck..mass air flow sensor,($140.00..NEW PLUGS
I have a ford f 150 model year 2001, I was told by a mechanic on this site that I have a vacume leak, my truck is giving me codes P1000,P0171, Po174, I have replaced the mass air flow sensor,($140.00)… read more
david
david
Heavy Duty Repair Mechanic
Vocational, Technical or Trade Scho
500 satisfied customers
2002 Ford F150: service engine light..actron obdii reader..p0171
My service engine light soon came on in my 2002 Ford F150, approx. 75000 miles on vehicle, removed codes, they reappear usually within a couple of days. Used an Actron OBDII reader, god codes P0171 (s… read more
A. Penland
A. Penland
Ford Senior Master Technician, ASE
Vocational, Technical or Trade School
7,797 satisfied customers
1998 ford expedition: liter engine..fuel trim..bank one..engine runs
I have a 1998 ford expedition with a 5.4 liter engine. The short term fuel trim on bank one goes to 0 and the engine runs ruff at a idle. What should I be looking for? The engine runs smooth at a idle… read more
lostrider
lostrider
lead technician/working shop foreman
Vocational, Technical or Trade Scho
3,074 satisfied customers
1997 Ford expedition: two dtc p0171 & p0174, I know what..obd..4x4
my question for my expert answer is two dtc p0171 & p0174, I know what they are I ran my obd ll to find out.I did some research on line what might cause these codes, but I always come back to the expe… read more
lostrider
lostrider
lead technician/working shop foreman
Vocational, Technical or Trade Scho
3,074 satisfied customers
ford f-150: codes p0171, and p0174, System too lean bank 1
I have a ford f-150, 5.4 L engine, have codes P0171, and P0174, System too lean bank 1, and 2. What does this mean?… read more
Jim
Jim
Service Manager
High School or GED
260 satisfied customers
2002 EXPLORER SPORT TRAC: CHECK ENGINE LIGHT..o2 SENSOR..egr SENSOR
MY 2002 EXPLORER SPORT TRAC CHECK ENGINE LIGHT IS ON AND THE CODES SAY I HAVE A LEAN FUEL CONDITION ON CYLINDER BANK #2,I HAVE REPLACED THE O2 SENSOR ON THAT BANK,CHANGED PLUGS AND WIRES,REPLACED THE … read more
Eric
Eric
Retired
N/A
37,979 satisfied customers
What is DTC #P0174 system too lean (Bank no. 2) mean It is ...
What is DTC #P0174 system too lean (Bank no. 2) mean? It is a 1998 Ford F-150, 5.4L, 4X4 Thanks, XXXXX XXXXX [email protected]… read more
Eric
Eric
Retired
N/A
37,979 satisfied customers
My inspection and emmitions done and the two codes..p0171..codes mean
I'm getting my inspection and emmitions done and the two codes I was given are p1131 & p0171. I'm just trying to repair the problem and need to know what these codes mean.… read more
Randall    (Cheeko)
Randall (Cheeko)
Ford Dealer
Vocational, Technical or Trade Scho
2,395 satisfied customers
1999 Ford Exp: P0171..P0174..IAC, MAF Sensor, Air Filiter
1999 Ford Exp is idling rough and has codes P0171 and P0174. Replaced IAC, MAF Sensor, Air Filiter. What is wrong with it?… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
31,725 satisfied customers
97 Mazda B4000: CEL..the Digimoto OBD software to diagnose the codes
I have a 97 Mazda B4000 that has the CEL displayed. The condition that appears are codes 0171 and 0174 along with 0401. I have used the Digimoto OBD software to diagnose the codes. It appears that the… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
31,725 satisfied customers
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Meet the Experts:

Ron

Ron

ASE Certified Technician

26,187 satisfied customers

23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Chris (aka- Moose)

Chris (aka- Moose)

Technician

31,725 satisfied customers

16 years experience

John Mc

John Mc

Ford Technician

5,495 satisfied customers

19 years Ford Lincoln Mercury experience

Chuck

Chuck

ASE Certified Technician

1,685 satisfied customers

33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

Cam

Cam

Journeyman Automotive Technician

10 satisfied customers

GM Grand Master Technician 2007. 14 years Automotive experience.

Mike V.

Mike V.

Auto Service Technician

1,994 satisfied customers

25 years experience on all makes and models, Licensed NYS Inspector.

Richard

Richard

ASE Certified Technician

1,535 satisfied customers

12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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