| DTC Strategy |
Case1 |
- Plausibility monitoring (pump delivering low pressure)
|
- Poor Connector Connection
- Clogged Fuel Filter
- Restricted Fuel Supply Line
- Fuel Leakage
- Faulty Fuel Pressure Regulator
- Faulty Fuel Rail Pressure Sensor
- Faulty ECM/PCM
|
| Case2 |
- Plausibility monitoring (pump delivering low pressure or over pressure valve defect)
|
| Enable Condition |
- Engine coolant temperature (ECT) is higher than 56°C (132.8°F)
- Full load not active
- Catalyst purge not active
- Fuel trim active
- No relevant failure
- Measured tip temperature is higher than 640°C (1184°F)
- Engine coolant temperature (ECT) is higher than 0°C (32°F)
- Catalyst overheating prevention not active
- Leak detection not active (after catalyst heating finished)
- Engine speed at between 512 RPM and 4000 RPM
- Mass fuel flow at between 4mg/stroke and 60mg/stroke
- Volume fuel flow is lower than threshold value
- Canister load is lower than 0.5
|
| Threshold Value |
Case1 |
- Lambda Controller including adaptive value higher than -15% and lower than 15%
- Fuel pressure controller higher than 0.08g
|
| Case2 |
- Lambda Controller including adaptive value higher than -15% and lower than 15%
- Fuel pressure controller higher than 0.04g
- Deviation of fuel pressure setpoint higher than 1.5MPa (15bar/217.5 psi)
|
| Diagnostic Time |
|
| MIL ON Condition |
|