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1999 Ford Explorer Sport 4.0L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on
I have a Ford explorer. It originally came in with code P0171(system lean, bank 1)and P0174 (system lean Bank 2). Could not find anything that looked bad, but put 2 new o2 sensors in it. It came back next day with the light back on and the customer complained ...
FIX posted 2/21/2004
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Message Closed w/FIX
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39 Replies Received
39 Replies Received
Related Documents & Media | VIN | 1FMYU24X6X |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
1999 Ford Explorer Sport
| VIN | 1FMYU24X6X |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video