P2646

Symptoms

• Check Engine light comes on
• Reduced engine power
• Increased fuel consumption
• Unstable engine idling
• Deterioration in acceleration dynamics

Causes

• Low or poor quality engine oil
• Contamination or clogging of the oil channels of the phase shifter
• VVT solenoid valve malfunction
• Mechanical damage to the phase shifter
• Problems with wiring or contacts in the control circuit

How to Fix

1. Check the level and condition of the engine oil
2. Clean or replace VVT solenoid valve
3. Check the condition of the phase shifter
4. Diagnose the control circuit for opens or short circuits
5. If necessary, replace the phase shifter

Related codes

Error P2646 by Vehicle Brand