Monitor Description
If fuel pressure does not drop even after the ECM has commanded the high pressure fuel pump to open the spindle control valve, the DTC is displayed. Also, if there is a slight difference in fuel pressure between before and after the fuel relief valve, the DTC is displayed.
MONITOR STRATEGY
| Related DTCs | P0088: High pressure fuel system monitor functional check (Pressure too high) |
| Required Sensors/Components (Main) | Fuel pressure sensor |
| Required Sensors/Components (Related) | - |
| Frequency of Operation | Continuous |
| Duration | 10 seconds |
| MIL Operation | Immediately after |
| Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
| Elapsed time after starting the engine | 10 seconds or more |
| Time elapsed after fuel cutoff | More than 2 seconds |
| Target fuel pressure variation 64 msec | 2.4 MPa {24.5 kgf/cm2 , 350 psi} or less |
| Direct injection ratio | More than 0 % |
TYPICAL MALFUNCTION THRESHOLDS
| Actual fuel pressure - target fuel pressure | Greater than 6 MPa {61.2 kgf/cm2 , 870 psi} |