Wha's happ'ng!

My '88 van was broken down and I couldn't start it before my stroke. Was
working on when the stroke occurred. Now I can drive again fa e the same
problem - it won't start. I tested the hall sender, the pump, the
injectors. No fire from coil to distributor. Used the engine analyser I got
from Van Cafe. That is sweet and worth having. Ultimately all indicators
pointed to the ecu. ThE ECU was not pulsing the coil. So, replace the ECU.

QUESTION: the replacement is a -1 unit from a later car and the original is
a straight unit'. Will the -1 work in place of the original? Is there a
difference in performance?

John