urq leaning out after boosting

Huw Powell human747 at attbi.com
Thu Sep 26 03:07:34 EDT 2002


>  My urq is still leaning out after it warms up and seems like ONLY after I
> boost it and redline it a few times. All switches and sensors new, including
> O2 sensor. Vacuum gauge is at 15 at idle. Stalls immediately after removing
> oil cap.
>  If the duty cycle is at 45%, it will go up to 95% after driving it hard, and
> will stay there until I turn the screw again, even after sitting overnight.

is that 45% idle duty cycle cycling up and down a bit, indicating a
functional OXS loop?

does the 95% one do that, too?

You might have problems with the idle/WOT switches, measure them, too.

--
Huw Powell

http://www.humanspeakers.com/

http://www.humanthoughts.org/



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