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2001 Ford F-450 Super Duty XL 6.8L MIL Lamp on
Replace fuel pump last week, low fuel pressure 25 psi, 34-36 at rpm. Drive 20 -30 miles lean codes come back, long term reaches 12% and will go into drive open loop, under 6% load. above that will go into close loop. Checked for vac leaks with smoke , no leaks...
FIX posted 4/29/2009
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Message Closed w/FIX
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11 Replies Received
11 Replies Received
Related Documents & Media | VIN | 1FCNF53S4Y |
| Engine | 6.8 L / 10 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | On Decel, Idle |
| Misc. | Motohome |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
2001 Ford F-450 Super Duty XL
| VIN | 1FCNF53S4Y |
| Engine | 6.8 L / 10 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | On Decel, Idle |
| Misc. | Motohome |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video