Fuel Injected

Ensure air intake system is not restricted.
Ensure engine is at normal operating temperature.
Verify base timing is correct.
Ensure exhaust system is not restricted.
Check EGR system for correct operation.
Check throttle body electrical connections.
Ensure fuel system pressure is correct.
Check purge control valve operation.
Ensure throttle position sensor has correct adjustment and resistance value.
Check operation of coolant temperature sensor.
Check ISC solenoid (Tracker).