P2090 OBD II Trouble Code B Camshaft Position Actuator Control Circuit Low Bank 1

How to quickly diagnose and repair, and causes of a P2090 electrical code which indicates a detected low B camshaft position actuator control circuit on bank 1.

Symptoms of P2090 OBD II Trouble Code

  • Rough engine idle
  • Decreased oil pressure
  • Engine may misfire
  • Poor engine performance
  • Increased fuel consumption
  • Change oil or service soon light is illuminated
  • Check engine light illuminated

Common Causes of P2090 OBD II Trouble Code

  • Worn timing belt or chain
  • Defective camshaft variable timing solenoid
  • Defective variable valve timing actuator
  • Engine oil level is too low
  • Blown fuse or fuse-able link (if applicable)
  • Misalignment of timing components
  • Corroded or damaged connector
  • Faulty or damaged wiring
  • Faulty ECU

Severity of P2090 OBD II Trouble Code

The severity of this code can vary tremendously from just an illuminated check engine light on a vehicle that starts and runs to an automobile that will idle rough or not start at all. The code can be serious depending on what symptoms are present. If the code is caused by a failed timing chain or belt the result can be internal engine damage.