P0191 Diagnostic Trouble Code Discussion for August 2017
Fuel Rail Pressure Sensor Performance
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| Help Request | Posted | |
| 2008 GMC Sierra 1500 WT 5.3L MIL Lamp on VIN: 2GTEK19J68 P0191: Fuel pressure sensor circuit. I'm posting for a fellow tech who is at the end of his rope on this truck. Story is truck came in several months ago with low fuel pressure. So they put a after market pump in. Two days after they had to put a oem pump in because the fuel pump module was turni... |
August 09, 2017 |
