Cylinder 2 Contribution/Balance
The ECU compares torque contribution of cylinder 2 against other cylinders by analyzing crankshaft angular velocity. Persistent low contribution triggers this code.
Affected components
- Fuel injector
- Ignition coil
- Spark plug
- Compression
Common causes
- High likelihood: Injector flow low
- Medium likelihood: Low compression cylinder 2
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
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.