Powertrain
generic / SAE
P0272
Cylinder 4 Contribution/Balance Fault
The ECU compares each cylinder's contribution to crankshaft speed (rough run analysis) and determined cylinder 4 contributes less or more than the average. This points to a mechanical or fuel delivery problem rather than a pure ignition fault.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number2 / 72
Possible causes
- Injector clogged or worn high
- Low compression on cylinder medium
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 100–1500 €
- Estimated time: 1–6 h
- Component: fuel injector
- Component: cylinder compression
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012