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Old 07-10-2013, 05:57 PM   #1
MK3_Turb0
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Join Date: Jul 2013
Location: Colorado
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Default Why does the idle bottom out when it drops from high RPM?

My engine cuts out whenever the engine RPM drops from over 2000+ RPM. For instance, whenever I pull the car out of gear at a light or to downshift around a corner, as the RPM drops, the engine stalls out.

It is frustrating restarting the car every few minutes and can be dangerous on turns when the power steering goes out.

Is this a vacuum issue?
The car is heavily modified and has an AEM ECU, though I don't think it is related to the ECU. It's been in the shop a couple times, but they can't seem to find the issue. YOUR HELP IS GREATLY APPRECIATED! THANKS!
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