| DTC Strategy |
|
- Poor Connector Connection
- Short to Battery in Fuel Rail Pressure Sensor Signal Circuit
- Restricted Fuel Return Line
- Faulty Fuel Pressure Regulator
- Faulty Fuel Rail Pressure Sensor
- Faulty ECM/PCM
|
| Enable Condition |
Case 1 |
- Engine speed higher than 512RPM
|
| Case 2 |
- Engine coolant temperature (ECT) is higher than 60°C (140°F)
- Full load not active
- Catalyst purge not active
- Fuel trim active
- No relevant failure
- Measured tip temperature is higher than 680°C (1256°F)
- Catalyst overheating prevention not active
- Leak detection not active (after catalyst heating finished)
- Engine speed is higher than 512 RPM and lower than 4000 RPM
- Mass fuel flow at between 4mg/stroke and 120mg/stroke
- Volume fuel flow is lower than threshold value
- Canister load is lower than 1.5
|
| Threshold Value |
Case 1 |
- Filtered fuel pressure higher than 25MPa (3625psi/250bar)
|
| Case 2 |
- Lambda controller including adaptive value higher than -50% and lower than 50%
- Fuel pressure controller lower than -90mg
|
| Diagnostic Time |
Case 1 |
|
| Case 2 |
|
| MIL ON Condition |
|