P3446

Cylinder 6 Exhaust Valve Control Circuit Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Unstable engine idling
Reduced engine power
Increased fuel consumption
Check Engine Light Illuminates
Possible misfire in cylinder 6

Causes

VVT solenoid valve malfunction
Open or short circuit in wiring harness
Poor contact in connectors
Mechanical problems with the timing system
Engine control unit malfunction

How to Fix

Check the condition of the VVT solenoid valve
Inspect the wiring harness and connectors for damage.
Check resistance and power supply in control circuit
If necessary, replace the solenoid valve or repair the wiring
Check the mechanical components of the timing system

Related codes

P3443 P3445 P3447