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alright so i am working with an original 89 hatch 4cyl 5-speed car. I am doing some research on the wiring harness and computor, what i read is only a 89 wiring harness and 89 V8 comp. will work in that car? is this true if so what are the differences in the wiring harness and computors from 87-93?
 

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alright so i am working with an original 89 hatch 4cyl 5-speed car. I am doing some research on the wiring harness and computor, what i read is only a 89 wiring harness and 89 V8 comp. will work in that car? is this true if so what are the differences in the wiring harness and computors from 87-93?
i know for a fact the 91-93 cars have their own wiring harness cause of the airbags. I think the 87-89 cars have their own and the 1990 cars are all by themselves.

so it like this. 87-89, 90, 91-93
 

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alright so i am working with an original 89 hatch 4cyl 5-speed car. I am doing some research on the wiring harness and computor, what i read is only a 89 wiring harness and 89 V8 comp. will work in that car? is this true if so what are the differences in the wiring harness and computors from 87-93?
No, it isn't true. Get donor harnesses and EEC from what matches what you want to run.
 
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