Pulled some codes on the Cobra we got last week. The CEL isn't on BUT I think it may be out or disconnected because is doesn't come on when you turn the key on.
P0411- Secondary Air Injection System Incorrect Flow Detected
P01443- EVAP Control System Purge Control Solenoid or Purge Control Valve Fault
P0174- System Too Lean (Bank 2)
P1519- Intake Manifold Runner Control Fault Stuck Closed
P0411 and P1519 are new ones on me. Maybe they are all related?
Well i know the p1519 your imrc has either stopped working or the wire that opens the valves inside the intake broke so you will have loss of power when wot most people just get rid of the imrc all together