P3423

Cylinder 3 Exhaust Valve Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Unstable engine idling
Reduced engine power
Increased fuel consumption
Dips during acceleration

Causes

Open or short circuit in control circuit
VVT solenoid valve malfunction
Poor contact in circuit connectors
Engine control unit malfunction
VVT System Mechanical Problems

How to Fix

Check the integrity of the control circuit
Check the resistance of the solenoid valve
Inspect connectors and contacts for oxidation
Check the operation of the VVT system
If necessary, replace faulty components

Related codes

P3420 P3421 P3422 P3424