Unplug the ECU in the offending van and check all the pins/contacts (both
sides of the connection).  Re-seat it and try again?  Next I would try
swapping them back again and see if it runs.

Jason

On Wed, Mar 22, 2017 at 7:14 PM, John Rodgers <jrodgers113@gmail.com> wrote:

> Two vans, both running, parked side by side. A  carat, and an '88 GL.
> SWAPPED ECU's - '88 GL starts, runs! Carat won't even fire! ECU swap was
> all that was done. Verifide ground and connection were good.
>
> What say "the list"?
>
> John
>