× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1991 Ford F-150 Custom 5.0L MIL Lamp on
Posted to Ford Driveability on 11/30/2001 4 Replies

check light comes on for approx 3 seconds maybe once, twice a day and maybe not at all for a day or so. no abnormal driveability conditions. (179)

had the light occur for me on one road test, lasting only a very short time, few seconds, with a lab scope on th...

4 Replies Received (View Replies)

  Related Documents & Media  1991 Ford F-150 Custom

 
Message Closed w/FIX

car Vehicle Data

1991 Ford F-150 Custom

VIN 1FTEX15N1M
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsFED
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

179adapive fuel lean limit has been reached/rich condition
Message Closed w/FIX

car Vehicle Data

1991 Ford F-150 Custom

VIN 1FTEX15N1M
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsFED
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

179adapive fuel lean limit has been reached/rich condition