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 control valve circuit 2. Faulty FPCV 3. Faulty rail pressure regulator valve circuit 4. Faulty RPRV 5. Fuel line leakage 6. Faulty 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 | Fuel Cut |
•
Yes (Case 2 and 3) | ||
Torque Limit |
•
Yes (Case 1) | |||
LNT Regeneration OFF |
•
Yes (Case 1) | |||
MIL |
•
On | |||
