Quote Originally Posted by MarkT View Post
Sparkie, disco_cat, where are you all at on decoding the 1UZ ECU.. I have a 1999 SC400 that I would love to mod the ECU for better throttle response. Let me know where your at in the project.
Unfortunately without a PCM in hand I'm not much use, I've also got a small business on the go in addition to my regular job. Winter is a much more productive time for me in this dept.

For throttle response you could always try squeezing the FPR in a vice - Bump the fuel pressure for some transient enriching.