If the rail pressure is out of specification for certain amount of time compare to target value, ECM sets DTC P008700.
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. Fuel line leakage 6. Defected ECM | |
Enable Condition |
•
Engine running | ||
Threshold Value | Case 1 |
•
Rail pressure is above limitation | |
Case 2 |
•
Actual pressure is higher than target pressure and target pressure is above certain value | ||
Case 3 |
•
Rail pressure is below limitation | ||
Detecting Time | Case 1 |
•
1 sec | |
Case 2 |
•
750 msec | ||
Case 3 |
•
300 msec | ||
Fail Safe | Engine OFF |
•
No | |
EGR OFF |
•
No | ||
Torque Limit |
•
No | ||
MIL |
•
On | ||
