Key on Engine Running (KOER) Self-Test

KOEO Self-Test:

1. Connect appropriate test equipment to self-test connector in order to run self-test.
2. Run engine at 2000 rpm for two minutes. This warms up the oxygen sensor.
3. Turn engine off and wait 10 seconds.
4. Set EEC-IV/MECS switch to position EEC-IV.
5. Select fast codes mode with mode selector switch.
6. Turn on power to Super Star II tester. Tester will briefly display 888. It will also light prompts on left side of display and speaker will beep.
7. Start engine.
8. After the ID code depress and release the brake pedal if appropriate.
9. After the ID code click twice on the HOLD switch button.
10. After the ID code, within 1 to 2 seconds, turn the steering wheel at least one-half turn and then relase it, if appropriate.
11. If a Dynamic Response Code occurs, perform a brief wide-open throttle (WOT).
12. Record all displayed trouble codes.