P2652

B Rocker Arm Actuator System Stuck On Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–167 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Unstable idling
Check Engine light comes on
Deterioration of vehicle dynamics

Causes

Jamming of the phase change mechanism
Low or poor quality engine oil
VVT solenoid valve malfunction
Contamination of oil channels of the VVT system
Problems with the wiring harness or connectors

How to Fix

Check the level and condition of the engine oil
Diagnose the operation of the VVT solenoid valve
Flush the oil channels of the phase change system
Check the phase change mechanism for jamming
Replace faulty VVT system components

Related codes

P2651 P2653 P2654