Fuel Injector Group B Supply Sense Circuit
The ECM detects a generic fault on the supply sense circuit of fuel injector group B. Group supply voltage cannot be measured reliably.
Affected components
- Fuel injector group b
- Wiring harness
- Ecm
Common causes
- High likelihood: Wiring or connector fault
- Medium likelihood: Group supply fuse aged with high resistance
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
- Reduced-power or limp mode may occur
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.