
1999 Ford Expedition Eddie Bauer 5.4L MIL Lamp on
LTFT on both banks remain at 25% all the time. STFT at 3%-6% This occurs at idle or cruise. All other data appears normal. No vacuum leaks found. O2 sensors appear to be operating normal.
FIX posted 11/9/2005
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Message Closed w/FIX
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VIN | 1FMRU17L1X |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / sefi |
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
1999 Ford Expedition Eddie Bauer
VIN | 1FMRU17L1X |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / sefi |
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) |