P065E OBD II Trouble Code Intake Manifold Tuning Valve Performance Bank 1

How to quickly diagnose, repair, and causes of a P065E diagnostic code which indicates a detected performance problem in the intake manifold tuning valve circuit on bank 1.

Symptoms of P065E OBD II Trouble Code

  • Poor engine performance
  • Loud clicking noise coming from engine bay
  • Decreased fuel economy
  • Possible misfire on startup
  • Reduced engine power
  • Power range altered
  • Cold start issues

Common Causes of P065E OBD II Trouble Code

  • Defective intake manifold (runner) tuning valve
  • Broken valve parts
  • Stuck valve
  • Extreme cold
  • Wiring issue (e.g. chafed, cracked, corroded, etc.)
  • Broken electrical connector
  • ECM issue
  • Valve contamination

Severity of P065E OBD II Trouble Code

Depending on the actual problem related to your case, this may range from nothing to worry about to something fairly severe and potentially damaging to your engine's internals. It would be a good idea to error on the side of caution when dealing with mechanical parts such as the intake manifold tuning valve. The potential for unwanted parts to enter the engine's combustion chamber is there so keep that in mind if you were thinking of putting this off until another day.