<faust_151@[EMAIL PROTECTED]
> wrote in message
news:4ed43f65-c74f-48b9-b6c1-4db97969e289@[EMAIL PROTECTED]
> After replaced IAC still wouldnt idle so installed IAC spacer and it
> runs pretty good at 12 BTDC, TPS is set low, fuel pressure about 35-40
> psi.
>
> Only thing now is when stopping, put the clutch in and brake, when the
> RPMs hit bottom it will die if I dont feather the gas. Tried to adjust
> IAC spacer screws to let more air in but then the idle gets worse.
>
> 89 GT 5spd, Trick flow heads and cam, BBKSSI Intake, BBK cold air,
> Ford Racing throttle body, vacuum resivior
>
sounds like you are close. Typically with it dying like that it would be
the
IAC clean or replace. The signal to it should be a square wave, forgot
what
the frequency is, but they vary the duty cycle to get it to open more or
less. I would think that one lead would be signal and the other ground,
rather than getting it off the block.
How are the HELO sensors in the exaust? they can get contaminated if you
use silicon gasket material. You should be working closed loop. Good
luck,
and let us know what you find.
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