Computerized Engine Controls: Notes

NOTE: Some states have adopted California emission standards. Refer to underhood vehicle emissions control information label for specific emission specifications and adjustment procedures.

All engines use Sequential Multiport Fuel Injection (SFI) and Distributorless Ignition System (DIS) controlled by Engine Control Module (ECM). Input devices supply ECM with signals which indicate operating conditions of the vehicle. ECM output signals control systems which control vehicle operation to optimize emission control and vehicle performance.