AIS17 - Check For Vacuum at IMRC Solenoid Outlet Port

^ Disconnect the IMRC solenoid outlet vacuum hose (top port) only.

^ Connect a vacuum gauge to the solenoid outlet port.

^ Is manifold vacuum present with the engine at idle?

YES -- Turn engine off and Reconnect IMRC solenoid outlet vacuum hose. Go to AIS18. AIS18 - Check For Vacuum at IMRC Actuator Inlet Port

NO -- Leave engine running. Go to AIS19. AIS19 - Check For Vacuum at IMRC Solenoid Inlet Port