P0191 Diagnostic Trouble Code Discussion for April 2022
Fuel Rail Pressure Sensor Performance
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| Help Request | Posted | |
| 2014 Buick Regal 2.4L Surge VIN: 2G4GV5EK5E P0191: fuel rail pressure sensor performance. service engine light on. slow to pick up speed. when the vehicle is running good at idle fuel rail pressure is 500 psi. desired is 500 psi. fuel rail pressure sensor volts 1.10. fuel trim short 0 (+ or -3) fuel trim long 0 (+ or - 3) when vehicle is acting... |
April 12, 2022 | |
| 2013 Chevrolet Equinox LT 2.4L Cuts out, Stall VIN: 2GNALDEK6D P0191: Fuel Rail Pressure Sensor Performance. Vehicle came in with P0172 and P0191, reduced engine power light on dash. Can clear codes and vehicle will run normally. Will sit there and idle great. Fuel trims +/- 2. Take it for a test drive while driving everything is within spec. Not every time, but ... |
April 27, 2022 | |
| 2013 Chevrolet Equinox LT 2.4L Cuts out, Stall VIN: 2GNALDEK6D P0191: Fuel Rail Pressure Sensor Performance. Vehicle came in with P0172 and P0191, reduced engine power light on dash. Can clear codes and vehicle will run normally. Will sit there and idle great. Fuel trims +/- 2. Take it for a test drive while driving everything is within spec. Not every time, but ... |
April 28, 2022 |
