Okay, the KOER codes you got are because at a certain point during the test, you are supposed to turn the steering wheel, and at another point, depress the brake pedal. Without a scan tool, you won't know when to to those, so don't worry about them. The codes you got during KOEO didn't reappear during KOER, so they aren't current codes. You need to disconnect the battery at the negative cable, turn on the headlights for 15 seconds to drain any capacitors, and hook the battery back up and run both KOEO and KOER tests again. What drivability symptoms are you experiencing?
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