I am in the process of converting from a TBI to TPI. I have a 90 formula and I am putting in a 92 TPI unit,wiring harness/computer.

The problem that i am having is that the 92 computer was for a manual. I have an automatic and I have not been able to find a bin for a 90-92 with automatic and a 305.

The popular bin that is found at dyi-bin etc for a 1991 gta305 at bin in NOT A 305. When I opened it with tuner cat the clyinder volume is 713cc not 623cc. Which leads me to believe that this bin is for a 350!!

Does anyone know where I could locate a stock bin for a 90-92 SD $8d with automatic trany and a 305?

Thanks.

 

You looked here?

http://www.eecis.udel.edu/~davis/z28/

 

Looked at site the one labeled 91 gta 305 is NOT!! also the one labeled 92fbodyauto is 350.... still no luck... Thanks anyway darksideofmoon.

Any one else??

Did anyone with a 90-92 305 tpi auto at any time make a back up of their own stock chip?

 

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Thank you! Thank you! SMasterson :hail:

 

NovaSS
Sent you some things off the board

 

1932 305TPI


Thanks!

 

I'm having the same problem finding a 91 305 TPI stock bin. I made an adapter and tried to read mine and, uh oh, didn't read the programmer manual enough.(I'm OLD, OK?) Pin 1 on the chip and pin 1 on the programmer is not the same for different size chips! (We learn from out mistakes ) I think I fried the eprom. Thanks for any help with a stock bin. And Happy New Year to all!

 

Forgot to add, I't an automatic!

 

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