P3406
Cylinder 1 Exhaust Valve Control Circuit Performance
P3406 is an OBD-II diagnostic trouble code meaning: Cylinder 1 Exhaust Valve Control Circuit Performance. Common causes: cylinder 1 vvt solenoid valve malfunction, open or short circuit in control circuit. Estimated repair cost: $17–89.
Symptoms
- Unstable engine idling
- Reduced engine power
- Increased fuel consumption
- Check Engine Light Illuminates
- Possible misfire in cylinder 1
Causes
- Cylinder 1 VVT solenoid valve malfunction
- Open or short circuit in control circuit
- Poor contact in control circuit connectors
- Mechanical failure of the VVT mechanism
- Problems with the engine control unit
How to Fix
- Check the condition of the VVT solenoid valve
- Check the integrity of the control circuit and connectors
- Check the resistance and functionality of the valve
- Check the mechanical part of the VVT system
- If necessary, replace faulty components
Related codes
Error P3406 by Vehicle Brand
FAQ
What does the P3406 code mean?
P3406 is an OBD-II diagnostic trouble code that indicates: Cylinder 1 Exhaust Valve Control Circuit Performance
What causes a P3406 error code?
The most common causes of P3406 include: Cylinder 1 VVT solenoid valve malfunction; Open or short circuit in control circuit; Poor contact in control circuit connectors; Mechanical failure of the VVT mechanism.
How do I fix a P3406 diagnostic trouble code?
To fix P3406: Check the condition of the VVT solenoid valve. Check the integrity of the control circuit and connectors. Check the resistance and functionality of the valve. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P3406?
Yes, but get it checked soon
How much does it cost to fix P3406?
The estimated repair cost for P3406 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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