I Just replaced 5.7 vortec out of 1996 suburban and replaced it with tbi 5.7 out of 1994 Suburban which wiring harness and ecu do i use ?

Asked by May 01, 2017 at 05:56 PM about the 1996 Chevrolet Suburban K1500 4WD

Question type: General

Just replaced 5.7 vortec out of 1996
suburban with tbi 5.7 out of 1994 suburban
which wiring harness and ecu do i use

6 Answers

73,065

You have to use the wiring harness and the OBD1 out of the 1994.

1 of 1 people found this helpful.
26,545

the1994

26,545

a second 2 slow

Best Answer Mark helpful

Will i need to use fuse block from the 94 or wire the 94 harness into the 96 fuse block?

73,065

You wouldn't be changing out the fuse box, you'll have to tap into some wires tho. How it all hooks up, I don't know. I have never seen anyone go this rout.

73,065

I have ben thinking about this more, your going to be better off pulling that engine out and finding a 1996 to 1999 5.7L engine to put back in there. Your just going to have a wiring nightmare, nothing but problems trying to wire that engine up. You would also have the security system to deal with.

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