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Not the same issue, but something idle-related I ran into with my new combination: Walsh Motorsports was unable to tune away an annoying stall that happens when the engine is first started and you immediately put the transmission into gear. If the engine is allowed to idle for 30-45 seconds, it is fine. Donnie said he had concluded that the EEC just didn't have enough capability to handle my very non-stock set of components under that one operating condition of cold start.
 

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15 inches is low; my cars are 17-18.
 

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Discussion Starter #23
Could the part of my ECM that delivers the IAC signal have fried/ glitched out? If I tracked down a comparable one and swap it in just to check the output, that should point to whether that is the problem or the wiring.
 

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Anything's possible; but a car will start and drive just fine with your foot on the throttle, with no IAC.

I drove Lazarus for a week one time like that due to a bad IAC.
 
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