P3428

Cylinder 4 Deactivation/Intake Valve Control Circuit High

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
Check Engine Light Illuminates
Engine vibration

Causes

Malfunction of the cylinder deactivation solenoid valve
Open or short circuit in control circuit
Wiring Harness Problems
Engine control unit malfunction
Mechanical problems with the valve mechanism

How to Fix

Check the condition of the solenoid valve of cylinder 4
Check the integrity of wiring and connections
Test control circuit resistance
Check the operation of the engine control unit
If necessary, replace faulty components

Related codes

P3425 P3426 P3427