P3430

Cylinder 4 Exhaust Valve Control Circuit Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Loss of engine power
Rough idling
Increased fuel consumption
Dips during acceleration

Causes

Open or short circuit in control circuit
Solenoid valve malfunction
Wiring Harness Problems
Mechanical failure of exhaust valve
Engine control unit malfunction

How to Fix

Check the integrity of the control circuit
Check the resistance of the solenoid valve
Inspect the wiring harness for damage
Check the mechanical condition of the exhaust valve
If necessary, replace faulty components

Related codes

P3425 P3435 P3440