Maybe the ECU plug isn't seated properly?  Try moving the ECUs back to
their prospective vans?  Why did you swap them in the first place if
everything was running great?

Ken

On Sat, Aug 12, 2017 at 5:14 PM, John Rodgers <jrodgers113@gmail.com> wrote:

> I have two vans. '88GL & '91 Carat. Van1 and Van2. Van2 ECU had a Shoebox
> testpigtail on i. Van1 did not! Both engines ran perfect. Now, after
> installing Van1's ECU into VAN2 the Van2 will not start at all. Won't even
> sputter,. Any one with ideas as to what this is about!?
>
> John
>

--
Thanks,
Ken Wilford
John 3:16
www.vanagain.com