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 does a 4T80 trans require a new PCM?

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dreww
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PostSubject: does a 4T80 trans require a new PCM?   Mon Mar 16, 2009 12:50 am

Just as it says.

If I wanted to go with a 4T65, I could see me needing a 97 pcm or at least switching out some pins in the PCM. But what about putting in a 4T80?
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BillBoost37
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PostSubject: Re: does a 4T80 trans require a new PCM?   Tue Mar 17, 2009 9:39 am

Only one guy with a Bonne that I know of has put a 4T80 in. It required different plumbing of the rear knock sensor, special brackets and cutting of the subframe to fit. Not sure how well it would fit in the Riv cradle, but it "can" be done.
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captshiner
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PostSubject: Re: does a 4T80 trans require a new PCM?   Tue Mar 17, 2009 2:07 pm

Isn't the whippled Riv running a 4t80e?
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TonySmooth89
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PostSubject: Re: does a 4T80 trans require a new PCM?   Tue Mar 17, 2009 2:13 pm

captshiner wrote:
Isn't the whippled Riv running a 4t80e?


Correct!
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dreww
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PostSubject: Re: does a 4T80 trans require a new PCM?   Thu Mar 19, 2009 1:41 am

BillBoost37 wrote:
Only one guy with a Bonne that I know of has put a 4T80 in. It required different plumbing of the rear knock sensor, special brackets and cutting of the subframe to fit. Not sure how well it would fit in the Riv cradle, but it "can" be done.

what does you friend think of it?
Im under the impression that its better than blowing tons on a new/modified "racing" trans that will put me out well over $1500

Im aware that mechanically, there will be some modifications. but what about electrical modifications? My friend can do any mechanical modifications, but Im probably stuck with the programming/ re-wiring.
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BillBoost37
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PostSubject: Re: does a 4T80 trans require a new PCM?   Thu Mar 19, 2009 8:42 am

That's an area I am unsure of.

There is the whippled Riv as well. The poster that was doing it stopped posting shortly after as the guys running that forum tried to kill the forum and many people lost interest when things became less about the car than drama and ranting.
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dreww
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PostSubject: Re: does a 4T80 trans require a new PCM?   Tue Mar 24, 2009 12:14 am

BillBoost37 wrote:
That's an area I am unsure of.

There is the whippled Riv as well. The poster that was doing it stopped posting shortly after as the guys running that forum tried to kill the forum and many people lost interest when things became less about the car than drama and ranting.

the guy running the whippled riv put the 4t80 into a later model riv with an original 4t65 which is electronically controlled. my 96 is vacuum controlled. my ecu doesnt have anything in it that controls the trans to my knowledge. This is why im thinking I will need a 97+ ECU. frown
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