DTC Troubleshooting Procedures: DTC Detecting Condition: Notes
DTC DETECTING CONDITION CHART
| ITEM |
DETECTING CONDITION |
POSSIBLE CAUSE |
| DTC Strategy |
- Monitoring deviation of lambda controller
|
- Restricted intake or exhaust system
- Dirty engine oil or oil level too high
- Front HO2S or MAFS contamination
- Over purging of the EVAP system
- High fuel pressure
- Faulty sensor signals
|
| Enable Condition |
- No relevant failure
- Estimated canister loading < 1
- Lambda control active
- Estimated fuel dilution in oil limited is in rich side
|
| Threshold Value |
- Lambda controller+Trim value < -25%
- The above condition is met for more than 60 sec. within 180 sec.
|
| Diagnostic Time |
|
| Fail Safe |
- EVAP. Emission control function is controlled in minimum operation mode
|