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mark houghton mark houghton is offline
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Join Date: Jul 2008
Location: Central Washington State
Posts: 3,861
If "blipping" the throttle brings the rpms back down, then it still points to something sticky in either the throttle cable or the linkage at athe throttle body, or the throttle body plate maybe gummed up and sticking in the body?
There's a stiff wire (call it a "rod") that goes from a pivot point attached to the tranny(IIRC) and runs up through a gap in the firewall to the engine. If that rod is bent and perhaps rubbing on something, that could be your issue (sorry for the poor description).

Outside of those reasons, how well is your AAR working? Does it do this: High idle when stone cold, idle drops in a couple minutes when warming up, high idle for a short period when starting back up after shutting down hot? Blipping the throttle, though, won't have an impact on the AAR. It will either admit the correct amount of air or it won't, and your idle will either be high or it won't if it's faulty.
Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 06-15-2011, 03:14 PM
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