I have a 2003 Ford Expedition.

Asked by Gpetey Jun 24, 2015 at 03:44 PM about the 2003 Ford Expedition

Question type: Maintenance & Repair

the check engine light came on and when scan the codes B 1600, B 1602, P 0171, P
0174 came up. What do those mean?

2 Answers

FordNut answered 8 years ago

B1600 and 1602 are PATS (Passive Anti-Theft System) Try another key. Actually something is really whacky if it starts with those codes. See http://b1600.enginetroublecode.com/ford-expedition and............. http://www.ford-trucks.com/forums/812980-b1600-1602-codes.html

Mark helpful

FordNut answered 8 years ago

P0171 and P0174 is lean, both banks. Could be faulty MAF (or just dirty,) the Mass Air Flow sensor measures the air flow going in to intake. Or a vacuum leak. Lean running can damage your catalytic convertor in a short time. Look for vacuum hoses fallen off, especially PCV See http://www.obd-codes.com/p0174 - http://engine-codes.com/p0171_ford.html

Mark helpful

Your Answer:

Related Questions

Own this car?

Share your experience with others.

2003 Ford Expedition

Write a car review

Review another car

Shortcuts

Search Ford Expedition Questions

CarGurus Experts

  • #1
    Larry Sturgis
    Reputation
    5,240
  • #2
    T_S_T
    Reputation
    4,540
  • #3
    Gene Arnett
    Reputation
    2,710
View All

Know more, shop wisely

Search

Related Models For Sale

Used Chevrolet Tahoe
1,065 Great Deals out of 21,006 listings starting at $1,000
Used Chevrolet Suburban
636 Great Deals out of 13,030 listings starting at $975
Used Lincoln Navigator
197 Great Deals out of 8,109 listings starting at $4,701
Used Ford Explorer
2,179 Great Deals out of 63,184 listings starting at $825
Used GMC Yukon
661 Great Deals out of 11,549 listings starting at $1,499
Used Ford F-150
6,091 Great Deals out of 133,226 listings starting at $1,100
Used GMC Yukon XL
375 Great Deals out of 9,507 listings starting at $3,000
Used Toyota Sequoia
137 Great Deals out of 3,666 listings starting at $1,100
Used Cadillac Escalade
355 Great Deals out of 6,740 listings starting at $1,995
Used Nissan Armada
300 Great Deals out of 7,652 listings starting at $900
Used Toyota 4Runner
1,158 Great Deals out of 18,585 listings starting at $1,550
Used Ford F-250 Super Duty
1,374 Great Deals out of 42,602 listings starting at $2,000
Used Honda Pilot
1,014 Great Deals out of 29,628 listings starting at $711
Used Dodge Durango
816 Great Deals out of 21,701 listings starting at $550

Used Cars for Sale

2024 Ford Expedition For Sale
6 Great Deals out of 13,920 listings starting at $49,980
2023 Ford Expedition For Sale
47 Great Deals out of 1,083 listings starting at $46,469
2022 Ford Expedition For Sale
120 Great Deals out of 1,213 listings starting at $34,632
2021 Ford Expedition For Sale
166 Great Deals out of 1,949 listings starting at $23,995
2020 Ford Expedition For Sale
121 Great Deals out of 1,417 listings starting at $19,988

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. Content will be removed if CarGurus becomes aware that it violates our policies.