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corsair 07-04-2003 01:52 PM

ecm harness
swapping out v6 engine and th200 transmission in 1986 cutlass supreme coupe. installing chevy 350 and 200r4 transmission. what ecm should i use.
also will the engine harness and dash harness in the car now plug into the v8 ecm?

Stinkin_V8 07-07-2003 10:53 AM

Did the V6 have fuel injection? What kind - TBI, MPFI, etc?

What sort of fuel injection have you got on the V8?

corsair 07-07-2003 11:40 AM

Appreciate help. The v6 is carbureted and the v8 I am installing will be carbureted.
Thanks, Jay

Stinkin_V8 07-08-2003 10:02 AM

Hmmm.. If they're both carbureted, there isn't going to be much that's controlled by that ECM. Maybe an electric fuel pump.. I think the electric fan is run from a temp. switch on the intake manifold. The tach signal is going to be different, but you should be able to fix that with a little fancy soldering - I think you only have to replce a capacitor on the circuit board of the tach (if you have one)

I don't know.. I would hook it up as close to the original V6 as I could and see what happened.

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