Bad ECU 1.6 8v 1990.

[fixkick]

one thing nice on the 60a cars.
less ECU's in class, and most in that class work. on all M/t (mean manual trans,stick shifted car)
on newer cars, less work right, in all classes. 91+ here.
but on the down side 90 used parts are harder to find.
so simpler, but harder.

almost like my 91. (mine was a rag top)
I drove my 91 like yours, m/t
for a year with a A/t ECU, just to prove I can. (it was my spare, )
but i can not run 60a ecu, on my 91, 56b car,
nor can we do the reverse.

only 60a ecu works in your car. and not below.