[mattminerDOTcom]

is an engine harness from a 89 si interchangeable with one from a 91 si?

yes i know i shoul dknow this, but I dont.

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[akirarex]

I can't say for sure.... wish I could, but I believe that they are the same.... the position of the timing plug is in a different physical location.

you could check majestic though

 

[mattminerDOTcom]

yeah im like 99 percent sure. the reason i ask is i have a obd1 GSR converted harness that was made out of a 90 si harness. Im wondering if it will plug into a 89 si and work.

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[OBD1 Kenobi]

The 89-91s are all the same. The 88s are the same but some wire colours are different.

 

[mattminerDOTcom]

you sir, have put my mind at ease. Thanks alot!

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