P0191 Diagnostic Trouble Code Discussion for January 2021
Fuel Rail Pressure Sensor Performance
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| Help Request | Posted | |
| 2016 Toyota Tacoma TRD Sport 3.5L Poor Idle Quality, Stall, MIL Lamp on VIN: 3TMDZ5BN3G P0191: Fuel rail pressure sensor circuit range. Low fuel pressure test good. Sensor reading and gauge readings match and are in spec. High pressure is in spec on sensor readings but at idle high pressure will keep climbing to 2000psi even with pump unplugged. |
January 06, 2021 | |
| 2016 Toyota Tacoma TRD Sport 3.5L Poor Idle Quality, Stall, MIL Lamp on VIN: 3TMDZ5BN3G P0191: Fuel rail pressure sensor circuit range. Low fuel pressure test good. Sensor reading and gauge readings match and are in spec. High pressure is in spec on sensor readings but at idle high pressure will keep climbing to 2000psi even with pump unplugged. |
January 07, 2021 | |
| 2009 Mazda B2300 2.3L No Start, MIL Lamp on VIN: MM0UNY0E40 P0191: fuel rail pressure. ... a Ford Ranger in New Zealand. I have inherited this job, I just spoke to the driver and got this information: A "good used engine" was fitted 70000km/2yrs ago. The vehicle has done [...] in total. It came in Friday with the engine light on, P01... |
January 31, 2021 |
