× 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
1999 Ford F-250 Super Duty XL 6.8L MIL Lamp on
Posted to Ford Driveability on 3/10/2009 13 Replies

I have smoke tested twice, check fuel pressure ok, checked pcv hose to back of intake tested mass air flow sensor according to bulletin, checks ok, will a bad MAF cause only po171 lean code, freeze frame is 1105 rpm, calc load 41.1%, coolant 204 degrees F, st ...

13 Replies Received (View Replies)

  Related Documents & Media  1999 Ford F-250 Super Duty XL

 
Message Closed w/Summary

car Vehicle Data

1999 Ford F-250 Super Duty XL

VIN 1FTX21L3XE
Engine6.8 L / 10 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
Message Closed w/Summary

car Vehicle Data

1999 Ford F-250 Super Duty XL

VIN 1FTX21L3XE
Engine6.8 L / 10 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)