| DTC Strategy |
- Maximum error of diagnosis of engine efficiency for catalyst heating during idle
|
- Intake air restriction
- Exhaust restriction
- Engine mechanical concern
- Damaged or sludgy throttle body
- Vacuum leaks
- Damaged ECM
|
| Enable Conditions |
- Catalyst heating is active
- Time after catalyst heating activated is greater than 0s
- Barometric pressure is greater than 74.5kPa
- Engine load is less than 65%
- Vehicle speed is same as 0km/h (0mph)
|
| Threshold Value |
- Average of spark efficiency deviation is greater than 40% during 10s
|
| Diagnostic Time |
|
| MIL ON Condition |
|