It could be a similar issue to what I had with my aux port. Over time the isage basically broke the solder that was used on the ports board, rendering it inoperable. I'd try taking it out and seeing if there's a broken connection
Thanks. That gives me a lot to consider. I had a feeling that the 1JZ would require that as they are typically (from what i've seen) been in cars like the supra and other rear wheel cars like it. Id seen another post about the turbo kits and after looking into them thought it might be just as...