I have an opportunity to purchase a 96 TT rolling shell at a steal. I have a spare 90-93 TT engine and trans from an older project and before I pull the trigger on purchasing it I would like to know what I would possibly need. I'm thinking it will need an engine harness, and 90-93 ECU but i'm not sure about what else it would need. the thing I'm most unsure of Is the communication from the ob2 diagnostic connector to the ecu. I haven't been on the forum in a while but if some of the old timers like Bernie are around I bet they have an answer.