Step "B"
- Turn ignition off. Reconnect IAC valve 2-pin connector. Perform PCM reset procedure. See SELF-DIAGNOSTICS - INTRODUCTION article. Start engine and allow to idle with no electrical loads.
- Check engine idle speed after one minute. See IDLE SPEED SPECIFICATIONS (PRELUDE) table. If idle speed is as specified, go to Step "C" . If idle speed is not as specified, go to TROUBLE SHOOTING - NO CODES article.