P3422

Cylinder 3 Exhaust Valve Control Circuit Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine operation
Power Loss
Increased fuel consumption
Check Engine Light Illuminates
Dips during acceleration

Causes

Control solenoid valve malfunction
Open or short circuit in wiring harness
Mechanical failure of the exhaust valve
Problems with the engine control unit
Valve dirty or stuck

How to Fix

Check the condition of the control solenoid valve
Test the control circuit for opens and short circuits
Inspect the mechanical condition of the exhaust valve
Check VVT system operation (if applicable)
Scan the control unit for additional errors

Related codes

P3420 P3421 P3423