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 ?

10

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

79,005

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

1 of 1 people found this helpful.
29,055

the1994

29,055

a second 2 slow

Best Answer Mark helpful
10

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

1 of 1 people found this helpful.
79,005

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.

79,005

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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