Possible Causes
| Possible Causes |
|---|
| HIGH PRESSURE FUEL SYSTEM LEAK AT THE SUPPLY TUBE OR INJECTORS |
| LOW PRESSURE FUEL SYSTEM LEAK / RESTRICTION / LOW PRESSURE ISSUE |
| FUEL RAIL PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT OPEN/HIGH RESISTANCE |
| FUEL RAIL PRESSURE SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE |
| FUEL RAIL PRESSURE SIGNAL 1 CIRCUIT OPEN/HIGH RESISTANCE |
| FUEL RAIL PRESSURE SIGNAL 2 CIRCUIT OPEN/HIGH RESISTANCE |
| FUEL QUANTITY SOLENOID HIGH SIDE CONTROL CIRCUIT OPEN/HIGH RESISTANCE |
| FUEL QUANTITY SOLENOID LOW SIDE CONTROL CIRCUIT OPEN/HIGH RESISTANCE |
| FUEL RAIL PRESSURE SENSOR |
| FAULTY FUEL PUMP MODULE IN THE LOW PRESSURE FUEL SYSTEM |
| HIGH PRESSURE FUEL PUMP/FUEL QUANTITY SOLENOID ASSEMBLY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .