No good saying that tenants abuse central air systems by not changing filters - because they don't change the filters on window units either. (biggerpockets.com)
There's also an automatic fire suppression system and an emergency fresh air system in the cabin. (rediff.com)
This could be anything from a mechanical issue (low oil pressure, intake air system leak, etc.) to an electrical problem (throttle position sensor, oxygen sensors, etc.). (yourmechanic.com)