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. Defected FPRV 3. Faulty rail pressure regulator valve circuit 4. Defected RPRV 5. Blocked fuel return line 6. Defected 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 | Engine OFF |
•
No | |
EGR OFF |
•
No | ||
Torque Limit |
•
Yes | ||
MIL |
•
On | ||
