90 ECU with 91+ wiring

All the beeping, zapping bits

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jeffball610
Too Much Time on His Hands
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Location: Las Vegas, NV

90 ECU with 91+ wiring

Post by jeffball610 »

I know I've seen how to do this somewhere. Every seach I do comes up with putting the 91+ ECU in the 90 DSM. Do I just need to swap the 6 and 14 wires? That's the only major difference I see. I'm not worried about the tach signal or any other similar functions. I just need this ECU to run the engine and the major mechanical functions. Anything else I should look at before getting too much deeper?
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4g63mightymax
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Location: MA
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Post by 4g63mightymax »

I am running a 90 EPROM ECU with my 91 Harness in my 4G63 Mightymax. Just swap the two wires and you are good to go. It worked for me :)
-Jeremy
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