Powertrain
generic / SAE
P2D10
Engine Pre-Ignition Above Threshold - Forced Limited Power
Pre-ignition events exceed a critical threshold. The ECM forces limited engine power to protect pistons, rings, and connecting rods from further damage.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberD / 10
Possible causes
- Low-octane fuel under sustained high load high
- Carbon deposits glow as hot spots medium
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–3000 €
- Estimated time: 1–12 h
- Component: spark plugs
- Component: fuel system
- Component: ecm
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012