P0191 Diagnostic Trouble Code Discussion for November 2011
Fuel Rail Pressure Sensor Performance
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| Help Request | Posted | |
| 2004 Ford F-150 STX 4.6L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, Severly over fueling VIN: 1FTRX14W74 P0191: Fuel pressure range performance. High every one. This one has us baffled. This truck came to us over fueling severly. Lots of black smoke. We found many codes on enitial scan so we cleared them all. The codes listed were the ones to return. Initialy we found that the fuel rail pressure sensor... |
November 02, 2011 | |
| 2004 Ford F-150 STX 4.6L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, Severly over fueling VIN: 1FTRX14W74 P0191: Fuel pressure range performance. High every one. This one has us baffled. This truck came to us over fueling severly. Lots of black smoke. We found many codes on enitial scan so we cleared them all. The codes listed were the ones to return. Initialy we found that the fuel rail pressure sensor... |
November 03, 2011 | |
| 2003 Jaguar S-Type 3.0L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: SAJEA01TX3 P0191: Fuel rail pressure sensor range/performance. ... codes, 7 of them pertinent. One was P1549 (Lower intake flap motor), we found the motor shorted to ground. Four or them were caused by the blown fuse from the intake flap motor shorted to ground, p0102 (MAF), P0445 (EVAP purge valve), P0447 (EVAP vent valv... |
November 07, 2011 | |
| 2003 Jaguar X-Type 2.5L MIL Lamp on VIN: SAJEA51D53 P0191: testing and results. Car came in with p0191 and low power. I ck the basic ,found low fp 30psi with mechanical gague.ck voltage with koer at pump 12.8v.removed pump and replaced.now when i start it fp goes to 55psi and then after system goes into close loop fp goes to 85psi.this is... |
November 13, 2011 | |
| 2003 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAFP53UX3 P0191: testing and results. Hello all. I have had this 2003 ford taurus with this mil light haunting me since before halloween. The vehicle originally came in with the fuel pump howling and no power, fuel pressure was originally low at 29-32 psi and the mil light was on with a po191. So ... |
November 21, 2011 |
