If the downstream lambda sensor signal is stuck rich under engine over-run condition, ECM sets P227100.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Voltage monitoring | 1. Poor connector connection 2. Faulty Injectors 3. Faulty downstream lambda sensor | |
Enable Condition |
•
Engine running | ||
Threshold Value |
•
Rich signal is detected under engine over-run condition | ||
Detecting Time |
•
500 msec | ||
Fail Safe | MIL |
•
On | |
