2003, 5.4, p0172 code

Asked by May 07, 2017 at 11:03 PM about the 2003 Ford Expedition Eddie Bauer 4WD

Question type: Maintenance & Repair

2003, 5.4, p0172 code.  maf good, plugs, injectors and cop new, bank 1 oxy
sensor new.  rich   condition bank one (pass side) only.

1 Answer

73,875

P0172 FORD - System Too Rich Bank 1 3 | Add Comment Possible causes: Faulty front heated oxygen sensor, Ignition misfiring, Faulty fuel injectors, Exhaust gas leaks, Incorrect fuel pressure, Faulty Mass Air Flow (MAF) sensor...The code is detected when, - Fuel injection system does not operate properly. - The amount of mixture ratio compensation is too large. (The mixture ratio is too rich.).

Your Answer

Ford Expedition Experts

  • #1
    T_S_T
    Reputation
    1,960
  • #2
    Larry Sturgis
    Reputation
    1,410
  • #3
    lightGear
    Reputation
    1,030
View All

Related Models For Sale

Used Chevrolet Tahoe
677 Great Deals out of 39,509 listings starting at $1,000
Used Ford Explorer
830 Great Deals out of 63,460 listings starting at $1,000
Used Chevrolet Suburban
350 Great Deals out of 21,836 listings starting at $1,999
Used Lincoln Navigator
83 Great Deals out of 4,501 listings starting at $1,900
Used Ford F-150
2,291 Great Deals out of 183,552 listings starting at $699
Used GMC Yukon
398 Great Deals out of 21,427 listings starting at $1,495
Used GMC Yukon XL
244 Great Deals out of 13,691 listings starting at $1,495
Used Cadillac Escalade
227 Great Deals out of 11,180 listings starting at $2,000
Used Nissan Armada
150 Great Deals out of 7,823 listings starting at $2,995
Used Ford Excursion
9 Great Deals out of 792 listings starting at $4,185
Used Toyota Sequoia
126 Great Deals out of 5,339 listings starting at $2,499
Used Dodge Durango
268 Great Deals out of 21,379 listings starting at $2,495
Used Ford F-250 Super Duty
363 Great Deals out of 44,638 listings starting at $1,799
Used Chevrolet Silverado 1500
2,102 Great Deals out of 165,819 listings starting at $1,498
Used Toyota 4Runner
281 Great Deals out of 21,650 listings starting at $1,750

Used Cars For Sale

2018 Ford Expedition For Sale
14 listings starting at $50,665
2017 Ford Expedition For Sale
40 Great Deals out of 10,128 listings starting at $29,480
2016 Ford Expedition For Sale
52 Great Deals out of 1,422 listings starting at $25,988
2015 Ford Expedition For Sale
16 Great Deals out of 579 listings starting at $19,995
2014 Ford Expedition For Sale
44 Great Deals out of 751 listings starting at $16,950

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.