P3441
Cylinder 5 Deactivation Performance
The engine control module has detected that cylinder 5 deactivation does not perform as expected — the actual cylinder behavior does not match the commanded state.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Lifter stuckCommon
- Deactivation solenoid failedPossible
Parts involved
- Cylinder Deactivation Solenoid
- Lifter
- Oil Control Valve
P3441 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.