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2004 Ford Freestar SES 3.9L Poor Idle Quality, Misfire
this one is getting to me. as stated running lean at idle only. highway cruise fuel trims are + or - 3. off idle fuel trims are good [...] rail pressure sensore reads 7 psi higher than gauge. if i increase pump duty cycle pressure comes up to 75, however lean ...
FIX posted 6/21/2014
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Message Closed w/FIX
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10 Replies Received
10 Replies Received
Related Documents & Media | VIN | [No VIN Available] |
| Engine | 3.9 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Message Closed w/FIX
Vehicle Data
2004 Ford Freestar SES
| VIN | [No VIN Available] |
| Engine | 3.9 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Video