Fuel Injector Driver Circuit Performance Bank 2
The injector driver stage on bank 2 - the high-side or low-side switching transistor that fires the injectors - reports a performance fault. Typical for a partial driver short, drift in the boost capacitor, or supply ripple under load.
Affected components
- Injector driver b2
Common causes
- High likelihood: Driver stage partial short
Possible symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.