P0275moderate severityPowertrain
Cylinder 5 Contribution/Balance
on 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD
What this code means
The PCM detected an imbalance in cylinder 5's contribution to engine output. This often indicates a fuel, compression, or injector issue in that cylinder.
Symptoms
- Rough idle
- Engine misfire feel
- Reduced power
Common causes
- Faulty fuel injector
- Low cylinder compression
- Vacuum leak at cylinder
- Ignition component fault
Diagnostic steps
- Perform cylinder contribution test
- Check cylinder 5 injector operation
- Run compression test on cylinder 5
- Inspect ignition and intake for that cylinder
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