AIS2 - Preliminary Checks For Lack of Power

^ Key On, Engine Off.

^ Check proper belt tension.

^ Check for throttle linkage binding.

^ Key On, Engine Running.

^ Check engine operating temperature and coolant level in overflow reservoir.

^ Check for vacuum leak (manifold, etc.) and hose routings.

^ Check for proper operation of EGR valve.

^ Check for ignition or exhaust malfunction.

^ Check for brake drag.

^ Check transmission shift schedule.

^ Are any problems found?

YES -- Service or adjust as necessary. Replace parts as necessary.

NO -- Go to AIS4. AIS4 - Air Filter Check