obd1.5 to obd 2

[TEES 94GTP]

hey i guys i have a 94 gtp 3.4 whats the gains of changing the computer from obd1.5 to and obd 2 computer? how is it and how to do it ? thanks for any info

[d.o.h.c]

You can start by picking up a wiring harness from the yard from a 96 3.4. It has to be a 96 casue in 97 they changed the tranny. Its a pretty much plug and play ordeal. You will need to swap a couple wires and add a few wires but all in all its a good swap. I wont say its easy, casue its really not at all, but well worth the time when you go to get it tuned.

[gpchris]

Yeah its pretty easy and well worth it!

[RedZMonte]

its not bad. time consuming and you need both wiring diagrams for both cars. Again must be a 1996 harness and ecu or your trans will not work. if you have a way to tune it (DHP) then its cool. are you turboing or S/C it? if not no real big gains...

S