| DTC Strategy |
- Ignition efficiency monitoring
|
- Intake air restriction
- Exhaust restriction
- Engine mechanical concern
- Damaged or sludgy throttle body
- Vacuum leaks
- Damaged ECM
|
| Enable Condition |
- Engine coolant temperature is between -10°C (14°F) to 33°C (91.4°F)
at engine start
- Vehicle speed is less than 100km/h (62mph)
- Accelerator active value is less than 50%
- Catalyst heating ignition efficiency set point is less than 0.45
|
| Threshold Value |
- Ignition angle efficiency quotient is greater than 0.2
|
| Diagnostic Time |
|
| MIL ON Condition |
|