P0088 Diagnostic Trouble Code Discussion for April 2023
Fuel Rail Pressure Too High
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P0088
| Help Request | Posted | |
| 2008 Chevrolet Silverado 3500 HD LTZ 6.6L Poor Idle Quality, Surge, MIL Lamp on VIN: 1GCJC33638 P0088: fuel rail pressure high. Morning all, found that this truck has an intermittent high fuel rail pressure after cold soak. Check the adjustable low side fuel pressure regulator on the after market lift pump and at 9 psi, lines been replaced and cant find any restrictions. Also had f... |
April 12, 2023 | |
| 2008 Chevrolet Silverado 3500 HD LTZ 6.6L Poor Idle Quality, MIL Lamp on VIN: 1GCJC33638 P0088: fuel rail pressure high. this morning i set up lab scope on regulator for signature, voltage, and duty cycle, low side pressure gauge, and a scanner. Started truck, immediate high pressure, sensor went to 200 mpa, voltage at the regulator was in spec, the wave form was normal, the... |
April 28, 2023 |
