P3405

Cylinder 1 Exhaust Valve Control Circuit/Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–67 (est.)

Symptoms

Loss of engine power
Unstable idling
Increased fuel consumption
Check Engine Light Illuminates
Possible misfire in cylinder 1

Causes

Broken wires in the control circuit
Solenoid valve malfunction
Poor contact in the connector
Wiring harness damage
Engine control unit malfunction

How to Fix

Check the integrity of the control circuit
Measure the resistance of the solenoid valve
Inspect connectors for oxidation
If necessary, replace the solenoid valve
Check the operation of the engine control unit

Related codes

P3400 P3401 P3406