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1998 Ford F-150 Lariat 4.6L MIL Lamp on
Four months ago we replaced both front O2 sensors after checking for vac leaks,fuel pressure &[...] came back today with same codes P0171&174 A/F rato too lean at max rich [...] checked everything we could think of and followed flow chart from [...] we missing...
FIX posted 3/17/2005
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Message Closed w/FIX
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23 Replies Received
23 Replies Received
Related Documents & Media | VIN | 2FTZX1768W |
| Engine | 4.6 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
1998 Ford F-150 Lariat
| VIN | 2FTZX1768W |
| Engine | 4.6 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) |
Video