
1998 Ford F-150 4.2L MIL Lamp on
This truck came in with codes P0171 and P0174 Too lean bank #1 & 2. I checked the waveform on the oxygen sensors and found that the front sensors were very noisy. I pulled five gas readings and all the readings were normal and the air to fuel ratio is perfect ...
FIX posted 8/31/2004
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Message Closed w/FIX
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VIN | 2FT2F1720W |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
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
VIN | 2FT2F1720W |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
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) |