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06-13-2019, 09:05 PM | #1 |
Senior Member
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,442
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Wiring diagram 1990-91 suburban
Finishing up the wiring on my 4L80e conversion and have to wire the controller into the factory ECM. Trying to figure out which wires are which. Any one have a diagram of the pigtails going into the ECM or a whole harness pic?
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06-14-2019, 06:36 PM | #2 |
Registered User
Join Date: Jun 2008
Location: santa maria,ca.
Posts: 312
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Re: Wiring diagram 1990-91 suburban
I have a Mitchell wiring diagram. I could scan and send to you if it would help. PM an email if you want it.
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1957 3100 1950 5 window |
06-15-2019, 02:22 AM | #3 |
Senior Member
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,442
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Re: Wiring diagram 1990-91 suburban
PM sent
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