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Can use BAC valve now that I have a SAFC.....huh?

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Old Sep 25, 2007 | 07:34 PM
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Can use BAC valve now that I have a SAFC.....huh?

Well, I just installed my SAFC-II and now I can use the BAC valve to adjust the idle...

Before I had the SAFC installed, the screw on the BAC valve had to be screwed all the way for my car to idle around 900-950 rpm. I just thought I had to adjust the dashpot. But once the SAFC was plugged in, my rpm dropped to 600 or so and I had to unscrew the screw to adjust it to +/- 800.

How come?
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Old Sep 26, 2007 | 06:47 AM
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If the settings are correct and the correction is 0 down low and you wired everything right, this shouldn't happen.

Sounds like you may have a possible vacuum leak? Sticking TB?
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Old Sep 26, 2007 | 07:09 AM
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Correction is not 0...well, I think.

I just hooked it up thats all. Going on the dyno saturday. Since I bought it used, I just initialized it so that I didn't run one someone elses settings.

Thats what I was told I should do.

Is that Right?
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Old Sep 26, 2007 | 07:45 AM
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The stock fuel trim is rich at idle.
Leaning it some with the S-AFC will increase idle revs.

FWIW if you run out of adjustment with the idle air bleed, then you may have to adjust the throttle shaft hard stop.
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Old Sep 26, 2007 | 10:24 AM
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Adding fuel in my engine at idle (800rpm) will raise the idle a bit but not that much. Maybe 50rpm

Correction is not 0...well, I think.

I just hooked it up thats all. Going on the dyno saturday. Since I bought it used, I just initialized it so that I didn't run one someone elses settings.

Thats what I was told I should do.

Is that Right?
If you JUST hooked it up or initiallized it, then the correction is ZERO across the board on both HI and LO maps
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