The MIL was on and the vehicle had a significant lack of power, with unknown service and repair history.

The vehicle was operating in a reduced power mode. Initial checks showed the engine had oil and coolant, the battery and charging system were okay, and there were signs the transmission had previously been replaced with a used unit. Although a crankshaft related fault code was stored initially, the confirmed cause of the reduced power condition was an open circuit intake shutter solenoid valve controlling the throttle body butterfly.