P3413Cylinder 2 Exhaust Valve Control Circuit/Open
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P3413 belongs to the exhaust half of the cylinder 2 block and reports an open control circuit for a separately driven exhaust valve actuator. No manufacturer documents this code publicly. The engines known to deactivate cylinder 2, GM's L84 V8 and the 3.6 L V6, switch intake and exhaust valves through one control valve per cylinder and therefore report circuit faults as P3409. The code would only apply to designs with their own control valve for the exhaust side; a GM patent application instead switches both sides with one shared valve and merely staggers them, exhaust first. CARB requires a continuity check for such output components. P3414 to P3416 complete the exhaust group. The driver would see a lamp and lose deactivation.
- What you may notice
- Check engine lamp on
- Cylinder deactivation unavailable
- Likely causes
- PossibleOpen wire or connector to the cylinder 2 exhaust actuator
- PossibleActuator coil open
- RareEngine control module driver fault
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €60 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.