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Old 10-21-2012, 09:21 PM   #3
Kijho
Scooby Newbie
 
Member#: 311882
Join Date: Feb 2012
Chapter/Region: W. Canada
Location: Alberta
Vehicle:
1995 GC8 STI
White

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Quote:
Originally Posted by dirtslayer View Post
Not sure if that's your iacv, because I haven't seen an older sti engine.
But if I were you, id look for 2 small coolant lines and a elec harness plug on the suspected iacv. It can only be on throttlebody or upper intake on some cars.

Check vaccum?
Check fuel ratio?

I don't have a gauge for ratio. My boost peaks the same as always, car runs perfect after the first 5-10 seconds or so.
The other night the rough initial idle / start was so bad however it actually stalled.
Some of my GC friends haven't had a single issue similar to what I'm experiencing, and then some of them have the absolute identical problem.

Runs 94 octane on stock ecu and stock everything else.
55,000km's original engine.
Changed fuel pump & filter recently. (To a used filter from a newer GD)
No leaks or anything anywhere.
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