Powertrain
generic / SAE
P03D9
Cylinder 7 Pressure Variation High
Cylinder-to-cylinder pressure variation on cylinder 7 is above the calibrated maximum — combustion is unstable cycle-to-cycle, typical of partial misfire or injector seat erosion.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number3 / D9
Possible causes
- Partial misfire high
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–2500 €
- Estimated time: 1–6 h
- Component: cylinder pressure sensor
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012