Thread: Idle RPM
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Join Date: Jul 2021
Location: Phoenix area
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Quote:
Originally Posted by Dano944 View Post
One last question: Does my early 944 have a cold-start faster idle setting? My car starts and stays at 1000rpm from cold-start and never changes. I’m used to more modern cars that have a slightly faster idle on cold start, then slows down when warm.
That probably means that your supplementary air valve is working perfectly. This valve allows extra airflow during cold start operation, and slowly closes as the engine warms up.

Your idle would be slower cold if it was not working.
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Old 01-31-2025, 05:24 PM
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