DTC Information: DTC Detecting Condition
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
- Response rate monitor (6-Pattern Monitoring).
|
- Poor connection
- Leak or clog in intake air system
- Injector
- Fuel pressure
- HO2S (S1)
|
| Enable Conditions |
- Upstream O2 Sensor Ceramic temp greater than 720 °C (1328 °F).
- ECT greater than 40.5 °C (104.9 °F).
- Purge mass duration greater than 5 sec.
- Engine load greater than 25% and less than 65%.
- Catalyst temp greater than 400 °C (752 °F).
- No fuel cut off.
- Fuel system status equal to Closed Loop.
- Engine speed and Engine speed greater than 1320 rpm and less than 3000 rpm.
|
| Threshold Value |
- Compare ratio of Expected Area to Actual Area less than 0.35.
|
| Diagnostic Time |
- 10 switches in Lambda setpoint steps (5 for Lean-Rich, 5 for Rich-Lean).
|
| Mil On Condition |
|
* S1: upstream oxygen sensor/S2: downstream oxygen sensor