WTB: 91 V6 5 spd wiring harness

[banzai92gt]

Hey guys,

in the middle of my 5 spd swap and need a new harness...

anyone got one that would work for me?

[Kris GTwhat?]

what happened to your auto harness? you dont need to change to a 5 speed harness...

[ronaconda]

...you dont need to change to a 5 speed harness...

X2

[Kris GTwhat?]

ive been searching for months for a 91 harness. thats the only one that will direct bolt up, because its the only year the beretta has the old style firewall setup, and non-abs with cruise. better check the junk yards. 91 corsica will work also

[banzai92gt]

lol the harness melted befor ei got the car and when i swapped to the 3400 i didnt do it.. so now im gonna do it properly while the engine and tranny are out..

[Alpinestar10]

got one from a 94 cavalier with the ecm idk if its the same though.

[scd88ga]

got one from a 94 cavalier with the ecm idk if its the same though.

If a 94 Cavy v6 ecm is anything like a 94 quad 4 ecm, then the eprom is different from the previous years. But you have the harness and ecm, so that shouldn't matter. I'm not sure if that's useful info of not? lol, oh well

[banzai92gt]

well if anyone is going to the jy and sees one, i will pay you nicely

[Baims_91Base]

For what it's worth, I'm running a 1994 Corsica wiring harness in my 1991 Beretta (non-ABS). I don't have the ABS computer installed and the harnesses connectors are hidden under my firewall covers since I don't need them. I didn't have to worry about cruise control wiring because my car wasn't equipped with it stock, but I'm sure you could lengthen wires if needed. I do plan on adding cruise to my 1991 eventually, probably next year now that it's running fine on the MPFI conversion.

As long as the same ECM is running the show from the donor car you should be alright - only independent thing is the MEMCAL/PROM, which provides specifics about the engine/transmission combo.

[banzai92gt]

well there you have it folks!!

anyonE?!

[Baims_91Base]

For what it's worth, I'm running a 1994 Corsica wiring harness in my 1991 Beretta (non-ABS). I don't have the ABS computer installed and the harnesses connectors are hidden under my firewall covers since I don't need them. I didn't have to worry about cruise control wiring because my car wasn't equipped with it stock, but I'm sure you could lengthen wires if needed. I do plan on adding cruise to my 1991 eventually, probably next year now that it's running fine on the MPFI conversion.

As long as the same ECM is running the show from the donor car you should be alright - only independent thing is the MEMCAL/PROM, which provides specifics about the engine/transmission combo.

I neglected to mention that I also swapped the dash harness in my '91 to that of a '94...sometimes I forget all the work I've done to that car.

In your case, I'm still thinking you could use a 92-93 V6 engine harness in a 91, ignoring the different mounting location for the cruise control servo - just lengthen the wires if you need to. (The ABS is moot since your car isn't equipped for it - the engine doesn't need to 'see' ABS equipment to run.)

And if you end up having to settle for one from an automatic car, you'll just need to modify the wiring harness slightly for the neutral safety switch and backup lights.

I have a '91 factory service manual and Kurt has one for a '93 to possibly confirm whether this would work - Cack would also probably be able to chime in with a definite answer right off the top of his head though. (wiring harness hybrid's) Jon might also, but I think his forté is more in the 94+ district. (Apologies if I assume incorrectly )

[banzai92gt]

can anyone find me a 91 v6 harness from the yard close to them please!? i know its kinda of a PITA but i would appreciate it, was out cleaning my engine bay yesterday and really want this thing ready for first thaw!!

[Alpinestar10]

auto or manual prefered i can get a auto one almost anyday but a manual is hard let me know... the auto one is easy to modify to work with a manual/.

[Carson21R]

what are you willing to pay for one?

[banzai92gt]

manual preferably...

i dunno, i guess it depends on how much you had to pay??