| DTC Strategy |
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- Poor connection or damaged harness
- EGR cooler clogging
- EGR pipe clogging and leakage
- Intake manifold air leak
- EGR actuator stuck
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| Enable Conditions |
- Fuel cut - Off condition
- Intake air temperature is greater than -6.75 °C (19.85°F)
- Engine coolant temperature is greater than 55 °C (131°F)
- Engine speed is between 1088 RPM and 2016 RPM
- Moving mean value of engine speed gradient is between -192 RPM/s and 192 RPM/s
- Engine speed gradient is between -416 RPM/s and 416 RPM/s
- Barometric pressure is greater than 74kPa
- Battery voltage is between 11V and 16V
- Measured intake manifold pressure is greater than 10kPa
- Throttle position is between 0° to 23.8~24.1° (Depends on engine RPM and intake air temperature.)
- EGR valve position study is completed
- EGR recirculation flow is higher than 5kg/h
|
| Threshold Value |
- Comparing the reference pressure and a measured pressure is greater than 1.45
- Intake manifold pressure is less than 41~112kPa (EGR valve close)
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| Diagnostic Time |
- Fuel cut-off duration 10 sec.
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| MIL On Condition |
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