If rail pressure is below specification or out of specified value for certain amount of time, ECM sets DTC P008800.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Rail pressure regulator valve signal monitoring | 1. Faulty fuel pressure regulator valve circuit 2. Faulty FPRV 3. Faulty rail pressure regulator valve circuit 4. Faulty RPRV 5. Blocked fuel return line 6. Faulty ECM | ||
Enable Condition |
•
Engine running | |||
Threshold Value | Case 1 |
•
Pressure difference in actual pressure and target pressure is lower than specification and target pressure is below specified value | ||
Case 2 |
•
Rail pressure is over limitation | |||
Detecting Time | Case 1 |
•
2 sec. | ||
Case 2 |
•
300 msec. | |||
Fail Safe | MIL |
•
On | ||
Torque Limit |
•
Yes | |||
LNT Regeneration OFF |
•
Yes | |||
