P349C

Cylinder 5 Deactivation/Intake Valve Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine operation
Power reduction
Increased fuel consumption
Vibrations at idle
Check Engine Light Illuminates

Causes

Malfunction of the cylinder deactivation solenoid valve
Mechanical damage to the intake valve
Problems with hydraulic compensators
Engine control unit malfunction
Open or short circuit in control circuit

How to Fix

Check the condition of the deactivation solenoid valve
Diagnose the mechanical part of the intake valve
Check hydraulic compensators
Scan the control unit for other errors
Check the integrity of the wiring harness

Related codes

P349A P349B P349D