P3467
Cylinder Deactivation Hydraulic Circuit Bank 1 Performance
The engine control module has detected a performance fault in the bank 1 hydraulic circuit used for cylinder deactivation. Oil pressure response or timing is outside the expected window during deactivation events, often caused by viscosity issues, internal leaks or worn lifters.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: shop_only
Common causes
Ordered by how often each turns out to be the cause.
- Incorrect oil viscosity or aged oilCommon
- Switching lifter worn or stickingPossible
- Internal oil leak in deactivation circuitPossible
Parts involved
- Oil Control Valve
- Lifter
- Engine Oil
P3467 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.