P0089 is set when a fuel pressure is too low or high compared with a set point.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Rationality check | 1. FPR(Fuel Pressure Regulator) 2. Low power supply to Fuel Pressure Sensor |
Enable Conditions |
•
RPM is higher than 512rpm and lower than 4000rpm. | |
Threshold Value |
•
Fuel Presure: Too high or low | |
Diagnostic Time |
•
6.5 sec | |
MIL ON Condition |
•
3 driving cycle |
