ECM/PCM shows P0088 when the rail pressure is higher than the target rail pressure.
Item | Detecting Condition | Possible Cause | |
DTC Strategy | Case 1 |
•
Max error of Rationality check | 1. FPR(Fuel Pressure Regulator) 2. Low power supply to Fuel Pressure Sensor |
Case 2 |
•
Min error of Rationality check | ||
Enable Conditions |
•
3 sec later after engine start | ||
Threshold Value | Case 1 |
•
Rail pressure controller > 2.3 Mpa | |
Case 2 |
•
Rail pressure controller < -2.3 Mpa | ||
Diagnosis Time |
•
- | ||
MIL On Condition |
•
2 trips | ||
