P341B
Deactivation/Intake Valve Control Circuit Performance Bank 2
The intake valve deactivation system on bank 2 is electrically active but the mechanical response does not match 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.
- Oil sludge blocks deactivation pinCommon
- Low oil pressurePossible
Parts involved
- Cylinder Deactivation Solenoid
- Hydraulic Pin
- Engine Oil
P341B 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.