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High Life High Life is offline
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Join Date: Jun 2017
Location: Iowa
Posts: 220
Interesting Tom.. The ICV allows air to bypass the throttle butterfly - so if its plugged with a penny - you then have to open the throttle to keep it running right?

So maybe the throttle switch isnt working?? When the throttle is fully closed, the throttle switch sends a voltage to the idle control valve to allow a certain amount of air to pass and idle properly.

I think you can test for resistance on the throttle switch - I have a Bentley I can look it up for you if needed..
1981 911SC
Old 08-17-2018, 06:19 PM
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