Have you tested the van with a known good ecu?

Marshall Ruskin

>My cold start problems are still unsolved on my 91 Carat 2.1L. As I
mentioned
>in last weeks post, I replaced the Temp 2 sensor and adjusted the throttle
>switch properly, replaced plugs, distrib cap and rotor cleaned (only 25K
miles
>and like-new) , idle stabilizer selenoid removed, cleaned and verified as
>functional, new battery, new oxygen sensor, Air Flow Meter cap popped and
>resistive trace cleaned.  So, yesterday I removed and sanded all the male
>connector contacts I could find in the engine compartment including the
engine
>ground strap and coated them with dielectric grease before plugging back
>together.  All to no avail... At a cold start, starter turns over and the
engine
>barely begins to catch after one or two tries (the starter is fine).  It
rises to idle
>after about 2-3 seconds but will shut off if I touch the pedel.  I have to
feather
>the pedel to keep it running and hesitation occurs until I drive a few
miles and
>everything warms up.  Again, after warm-up, no start problems and the van
runs
>great.
>So, listees, I need your help to try and figure this one out before I go to
the
>dealer and spend $$$.  A friend suggested that I drill out the cap on the
throttle
>body and adjust the CO screw underneath.  What do You think of this course
>of action.  Also, does anyone know what the vacuum pressure should be at
idle
>(mine reads 10 PSI).  All help is appreciated. TIA.
>Rob Lebo
>York,  PA
>