P2DED
Cylinder 4 Intake Valve Lift Range/Performance
The variable intake valve lift on cylinder 4 does not reach the commanded position within tolerance. Mechanism wear or actuator force degraded.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Variable lift mechanism wornCommon
- Oil pressure to actuator lowPossible
- Sensor element aged beyond calibration windowLess likely
Parts involved
- Intake Valve Lift Actuator Cyl 4
- VVT System
P2DED is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.