Monitoring function
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The trim control plausibility monitoring detects a high deviation of the l-share of lambda trim control. If it exceeds given thresholds the following malfunction is detected:
- fuel trim above limit
If the above mentioned malfunction is detected, the corresponding fault code is stored.
FAULT CODE REFERENCE
| B1S1 | B2S1 | |
|---|---|---|
| air fuel mixture too rich | P2097 | P2099 |
| air fuel mixture too lean | P2096 | P2098 |