Powertrain
generic / SAE
P2647
A Rocker Arm Actuator System Stuck On Bank 1
On variable valve lift systems (e.g. Honda VTEC) the ECU detects that the bank 1 rocker arm actuator is stuck in the engaged (high lift) position. Idle quality and fuel economy are affected.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number6 / 47
Possible causes
- Insufficient oil pressure / level high
- Stuck VVL solenoid medium
- Carbon or debris buildup preventing free movement low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–1500 €
- Estimated time: 1.5–6 h
- Component: vvl actuator
- Component: rocker arm
- Component: oil passages
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012