What causes codes p-171 and p-174

Asked by Jan 31, 2015 at 12:53 PM about the 2006 Ford F-250 Super Duty Lariat SuperCab 4WD LB

Question type: Maintenance & Repair

I checked for vacuum leaks and replaced MAF sensor. Could it be O2 sensors?

1 Answer

2,505

P0171 Intake air leaks Faulty front heated oxygen sensor Ignition misfiring Faulty fuel injectors Exhaust gas leaks Incorrect fuel pressure Lack of fuel Faulty Mass Air Flow (MAF) sensor Incorrect Positive Crankcase Ventilation (PCV) hose connection P0174 Intake air leaks Faulty front heated oxygen sensor Ignition misfiring Faulty fuel injectors Exhaust gas leaks Incorrect fuel pressure Lack of fuel Faulty Mass Air Flow (MAF) sensor Incorrect Positive Crankcase Ventilation (PCV) hose connection I would do a Fuel pressure test first.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Ford F-250 Super Duty Questions

Ford F-250 Super Duty Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 820
#2 kbro
kbro
Reputation 600
#2 Tom Demyan
Tom Demyan
Reputation 600
View All

Related Models For Sale

Used Ford F-350 Super Duty
408 Great Deals out of 26,380 listings starting at $3,000
Used Ford F-150
2,224 Great Deals out of 205,271 listings starting at $1,499
Used Chevrolet Silverado 2500HD
310 Great Deals out of 27,532 listings starting at $1,250
Used Dodge Ram 2500
160 Great Deals out of 5,218 listings starting at $2,990
Used GMC Sierra 2500HD
113 Great Deals out of 13,964 listings starting at $2,650
Used Chevrolet Silverado 1500
1,686 Great Deals out of 174,330 listings starting at $1,250
Used Toyota Tundra
428 Great Deals out of 34,113 listings starting at $3,200
Used GMC Sierra 1500
806 Great Deals out of 67,649 listings starting at $2,484
Used Dodge Ram 1500
470 Great Deals out of 11,116 listings starting at $700
Used Dodge Ram 3500
93 Great Deals out of 2,148 listings starting at $4,999
Used Ford Mustang
454 Great Deals out of 45,520 listings starting at $1,999
Used Ford F-450 Super Duty
35 Great Deals out of 2,599 listings starting at $7,937

Used Cars For Sale

2017 Ford F-250 Super Duty For Sale
5 Great Deals out of 29,616 listings starting at $20,575
2016 Ford F-250 Super Duty For Sale
22 Great Deals out of 3,335 listings starting at $24,906
2015 Ford F-250 Super Duty For Sale
21 Great Deals out of 2,067 listings starting at $15,900
2014 Ford F-250 Super Duty For Sale
13 Great Deals out of 857 listings starting at $11,900
2013 Ford F-250 Super Duty For Sale
9 Great Deals out of 816 listings starting at $8,988

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.