After Warm Up

Check:

1. Idle Control System
a. Idle Air Control Valve (IAC) (14)
b. Idle Adjusting Screw
2. Fuel Supply
a. Fuel Injector (16)
b. Pressure Regulator
3. Emission Control System
a. Exhaust Gas Recirculation (EGR) Control System (12)
4. Barometric Pressure (BARO) Sensor
5. PGM-FI Control (ECM) Unit (BU)

NOTE: All items should be checked in the order in which they appear. A (number) after the component indicates the fault code associated with that system. If BU appears on with PGM-FI unit, it indicates the vehicle is running in back-up mode.