by crispy'86 » Mon Dec 11, 2006 8:46 pm
the 4age's use an air bypass valve that does exactly that, bypasses the intake air past the throttle body. I had the similar trouble with mine on my '86 but just took a water hose off the pipe to the T/B and put back on seems fine now. There may be a way if you pulled the bottom of it off, but usually factory set and unadjustable. Unless you either locate another one or ignore it.
1983 Trueno Ae86 ( project), 92 HSV Clubbie. 2000 Fielder wagon
Many previously owned projects: 94 Hilux 4WD, 92 VP SS commodore, AE85 notchback, Ae85 rolling shell, Ke35 sr coupe, EP82 turb starlet