ok, so my car was originally a 305 4bbl carb (lg4 i believe), I am in the process of converting it to tpi because i am sick of after market carbs but anyways. my question is do i have to change the data connector and wires in my car to one that was used in a tpi car?

if so, does anyone have one?

 

Not sure what you're really asking here. You'll need a TPI harness with a compatible ECM, a TPI chip, and all the sensors.

 

I mean the adl connecter under the dash on the drivers side, you know for the engine codes and such. I was simply wondering if the current carb computers connector is the same as the TPI computers connector/wires. I have the computer and wiring harness..sensors are on the way but i want to make sure i have everything ready to go before i start the car for the first time.

 

The ODB/ALDL connector is the same.

 

can anyone confirm this? I am hearing from another site its different and the dash harness needs to be changed.

 

anyone?

 

The connector itself is the same, but it's part of the ECM underdash harness. Certain pins are present on certain years/engines too. For example, the TPI ALDL will have the fuel pump test pin, the LG4 will not. If you have a TPI donor car, I'd recommend just swapping the entire underdash harness.

 

Yeah im coming into a tpi donor car soon, im taking the under dash wiring cause i looked at my aldl and a pic of a tpi its def different. so now i get to learn how to change a harness...

 

yeah...just got the donor harness out of the tpi car..same year as mine...and oh god what a pita. I almost want to sell my car and just buy one with tpi.

 

Now the FUN begins... install time!!!