P0191 Diagnostic Trouble Code Discussion for September 2015
Fuel Rail Pressure Sensor Performance
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| Help Request | Posted | |
| 2009 Lincoln Town Car Signature Limited 4.6L No Start VIN: 2LNHM82VX9 P0191: fuel presure range off. Towed in with no fuel pressure. Had a 20 amp fuse blown that said fuel in the fuse box underhood. Changed fuse and tried,no good. Switched horn and pump relay and no change. With these 2 codes most guys said that fuel module usually is the problem.I tried one ... |
September 01, 2015 | |
| 2009 Chevrolet Silverado 1500 LT 4.8L MIL Lamp on VIN: 2GCEK29CX9 P0191: Fuel rail pressure sensor circuit performance. replaced fuel pump assembly, with new dealer pump, live data pressure sensor reads 80psi I put a manual guage on rail to find 80psi, after replacing pump I still have 80psi at rail nothing changed, from what I read fuel pump module is part of assembly, an even... |
September 11, 2015 |
