These 40 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 40 times.
| Code | Definition | Repair coverage |
|---|---|---|
| P219A | Bank 1 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P219B | Bank 2 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P219C | Cylinder 1 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P219D | Cylinder 2 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P219E | Cylinder 3 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P219F | Cylinder 4 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P21A0 | Cylinder 5 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P21A1 | Cylinder 6 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P21A2 | Cylinder 7 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P21A3 | Cylinder 8 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P21A4 | Cylinder 9 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P21A5 | Cylinder 10 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P21A6 | Cylinder 11 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P21A7 | Cylinder 12 Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P230A | Cylinder 1 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P230B | Cylinder 2 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P230C | Cylinder 3 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P230D | Cylinder 4 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P230E | Cylinder 5 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P230F | Cylinder 6 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P231A | Cylinder 7 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P231B | Cylinder 8 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P231C | Cylinder 9 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P231D | Cylinder 10 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P231E | Cylinder 11 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P231F | Cylinder 12 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | 4 ranked fixes |
| P23F2 | Cylinder 1 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23F3 | Cylinder 2 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23F4 | Cylinder 3 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23F5 | Cylinder 4 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23F6 | Cylinder 5 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23F7 | Cylinder 6 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23F8 | Cylinder 7 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23F9 | Cylinder 8 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23FA | Cylinder 9 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23FB | Cylinder 10 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23FC | Cylinder 11 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23FD | Cylinder 12 Injector B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23FE | Bank 1 System B Air-Fuel Ratio Imbalance | 4 ranked fixes |
| P23FF | Bank 2 System B Air-Fuel Ratio Imbalance | 4 ranked fixes |
This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here:
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