1990 200 missing/lean under boost

[David Yentema]

These were the fuel pressures I got last time I checked:
cold control pressure 22psi
warm control pressure 53psi
system pressure 84psi


On Thu, Jun 9, 2011 at 10:31 AM, David Michael <adavidmichael at gmail.com>wrote:

> It's a long shot, but have you checked the control pressure? Moreover, if
> you can safely do so, you may want to figure out a way
> to monitor conbtrol pressure under boost.
> The control pressure is supposed to be very steady after the car warms up,
> but I had a control pressure regulatory go bad on me; it increased the
> pressure (leaned out the mixture) by a few PSI randomly. The failure was not
> related to boost, but if the control pressure is wrong, nothing will work
> properly. Remember, HIGHER pressure means LESS fuel....
>
> Dave
>