OBD Guide

P2661

B Rocker Arm Actuator System Performance/Stuck Off Bank 2

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Loss of engine power
  • Increased fuel consumption
  • Rough idling
  • Reduced acceleration dynamics
  • Possible check engine light coming on

Causes

  • Clogged actuator oil channels
  • Malfunction of control solenoid valves
  • Low engine oil pressure
  • Mechanical jamming of actuators
  • Problems with wiring to actuators

How to Fix

  1. Check the level and quality of engine oil
  2. Diagnose oil pressure in the system
  3. Clean oil channels and actuators
  4. Check control solenoid valves
  5. If necessary, replace faulty rocker arm actuators

Related codes

Error P2661 by Vehicle Brand