I have a 95vr4 with an AEM EMS/wideband and MAP sensor. The car has started idling at around 1900-2000rpm. No Vacum leaks that I know of (boost controller indicates -21).I've changed the IAC with a brand new one. Also tried just disconnecting it...didn't help. I've swaped the the EMS and throttle body with another car that idled fine (same set up). If I put my hand over the holes on the bottom of the throttle body while its running the idle will go back to normal. As soon as I remove my hand it jumps up again. Any ideas?
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