P2656

A Rocker Arm Actuator System Performance/Stuck Off Bank 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–167 (est.)

Symptoms

Deterioration of vehicle dynamics
Unstable engine operation at idle
Increased fuel consumption
Possible Check Engine Light

Causes

VVT solenoid valve malfunction
Low or contaminated engine oil level
Mechanical failure of the phase regulator drive
Problems with wiring or contacts
Camshaft position sensor malfunction

How to Fix

Check the level and quality of engine oil
Diagnose bank 2 VVT solenoid valve
Check valve control and power circuits
Inspect the mechanical part of the phase regulator
If necessary, replace faulty components

Related codes

P2657 P2646 P2647