So i been doing some thinking of doin the 24x lsx pcm swap on my firebirds lt1, my motor and trans are a 94, now i have a lsx pcm and the coil packs also 5 wire maf. Now i have some questions.
Will my transmission work or need to replace it with a new one?
What harness do i need to build my own for the swap and is there a how to on that.
Do i need anything parts for my motor to make this work.

I think thats about all the question i have for now

 

Most if not all of your questions are answered on the 24x webpage.

 

I did the conversion. If you have an auto, I believe the trans internal wirings and solenoids has to be upgraded to a 96-97 4L60E internals. I went ahead and upgraded to a new FLT 4L60E and be done with it.

 

The Trans internals needs to be replaced. Valvebody, and solenoids just need to be converted to work. I had mine swapped. Cost me $200.00. Also there is a DIY harness, I bought it, looked at it and wished I got the one already done, so I had a buddy (robsquickz28) do it for me. But all in all I feel confident that it will be worth it to never have to worry about an opti issue ever again and the tuning should be advantageous as well.

 

Yea i kinda figured the trans was goin to be a problem, i could look into have the parts swapped out or find a newer trans from work. What all comes in the diy kit, i looked on efi site and couldnt find much.

 

All of your questions have been answered in many threads already. Use the search function and you will find the info your after.

 

I think I got everthing I was looking to have answered and more, and yes I have searched and Have done alot of reading and reading and Im think im ready to go ahead and do this swap. thanks everyone for ur help.

 

You will Not regret it...

 

I did it about a year ago and i don't regret it at all. I just made a 700+ mile trip and didnt have to worry the first time about the opti spark.