P2004 OBD II Trouble Code Intake Manifold Runner Control Stuck Open Bank 1

Symptoms of P2004 OBD II Trouble Code

  • Reduction in engine performance, especially at low RPM levels
  • Diminished fuel efficiency
  • Engine surge

Common Causes of P2004 OBD II Trouble Code

  • Defective IMRC actuator solenoid
  • Loose or binding intake manifold runners
  • Bad intake manifold runner position sensor
  • Open or shorted wiring in the IMRC actuator solenoid control circuit
  • Faulty MAP Sensor
  • Corroded IMRC actuator solenoid connector face