
1998 Ford F-150 Lariat 4.6L MIL Lamp on
this 4.6 runs good while running down the road and fuel trims stay +-5% but when you idle for a couple minutes fuel trims jump to 35% or more. i tried everything i can think of. it acts like a vacuum leak but cannot find any. I had a like vehicle so swaped maf...
FIX posted 3/16/2012
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Message Closed w/FIX
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VIN | 1FTZX18W6W |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
1998 Ford F-150 Lariat
VIN | 1FTZX18W6W |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |