I just put a 94 lt1 into my 95 3.4. I changed the engine compartment harness to a 95 lt1. I have connector c105 that goes to nowhere. i took out the pink wire from c105 and put it into cavity k on the other connector. i also spliced the 4pin black connector on the passengers side interior and got a hot from the pink on the blue connector. i now have spark, fuel, and injectors. the car will run, but i have no serial data. i cannot pick anything up on my scan tool. there is still a tan wire coming into the c105 connector that goes to nowhere(that is a serial data wire i think). Where do i need to jump power to and from to get my serial data working? im lost at this point and have no other ideas on what to do.

 

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