Single OBD II Codes
P1091
Codes for DTC Error Code P1091
| Make | DTC Error Code Meaning |
| *BMW | Pre Catalyst Fuel Trim System too Rich Bank 1 |
| *Subaru | TGV 1 system (Closed) |
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| Make | DTC Error Code Meaning |
| *BMW | Pre Catalyst Fuel Trim System too Rich Bank 1 |
| *Subaru | TGV 1 system (Closed) |