P0191 Diagnostic Trouble Code Discussion for April 2012
Fuel Rail Pressure Sensor Performance
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| Help Request | Posted | |
| 2008 Mercedes-Benz CLK63 AMG 6.3L MIL Lamp on VIN: WDBTJ77H48 P0191: Fuel Pressure Sensor Upper Limit Reached. Hey All, I have a recurring intermittent code for The fuel pressure sensor reaching its upper limits. I have replaced the fuel pressure sensor, as well as both fuel pumps. anyone had any experience with this issue? Vehicle appears to run perfect. the only thi... |
April 03, 2012 | |
| 2008 Ford E-350 Super Duty 6.8L MIL Lamp on VIN: 1FD3E35S08 P0191: Fuel pressure sensor circuit range performance. We have a code P0191 and no driveability issues. IDS scan shows 0.7 PSI fuel pressure and code is on. Removed sensor and tested fuel pressure - 50 PSI KOEO. Replaced the sensor with new Ford and still show no fuel pressure on the IDS. Checked 5V ref and ground... |
April 16, 2012 |
