04-01-2017, 12:11 PM
see those p/n
your have the wrong head ,
car is 2 doors right? USA, right?
above is that. E3 = federal usa, E33 is calif, and code e28 is canada., yes there are 3 cars, GEO same year, not same.
my guess is some bad guy put in a first issue 1989 cluster there. some had no VSS, at all.
the very first, ECU had no VSS, 1989 and only had one if cruise optioned was ordered. then it must know speed to cruise.
then in 1991 , ALL ECUs, use VSS for engine load. fueling. calc. 56Bxx series ECU do that.
your have the wrong head ,
car is 2 doors right? USA, right?
above is that. E3 = federal usa, E33 is calif, and code e28 is canada., yes there are 3 cars, GEO same year, not same.
my guess is some bad guy put in a first issue 1989 cluster there. some had no VSS, at all.
the very first, ECU had no VSS, 1989 and only had one if cruise optioned was ordered. then it must know speed to cruise.
then in 1991 , ALL ECUs, use VSS for engine load. fueling. calc. 56Bxx series ECU do that.
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