Idle Speed Fluctuates
- Check Idle Air Control (IAC) valve. See DTC P1508 or P1519 in TESTS W/CODES articles below:
- For Integra, see TESTS W/CODES article.
- For 2.3CL, see TESTS W/CODES article.
- For 2.5CL, see TESTS W/CODES article.
- For 3.0CL, see TESTS W/CODES article.
- For 3.2TL, see TESTS W/CODES article.
- For 3.5RL, see TESTS W/CODES article.
- On 3.2TL and 3.5RL, check generator FR and A/C signals. See SYSTEM/COMPONENT TESTS article.
- Check fast idle thermovalve. See procedures in SYSTEM/COMPONENT TESTS article.
- Check idle speed adjustment. See ADJUSTMENTS article.
- Check throttle cable and then throttle body for sticking and binding.