Anyone working on tuning??

[Moose]

If there were a socketed, Windows-based ECU tuning program for Toyota, like a Crome or Uberdata, it would be much easier. The un-availability of such things is what makes this difficult.

The reason I'm not a big fan of piggybacks is what largeorangefont mentioned- the security measures in the newer (OBD2B and newer) ECUs. Even on Hondas, who have all of the aftermarket support imaginable, one wrong move with a VAFC or SAFC will cause multiple DTCs. Crankshaft position sensor codes, throttle position codes, hell, even immobilizer codes! Imagine not being able to start your car until you have zeroed and removed your SAFC- I've been there, and it SUCKS.

Going to a socketed program was actually, not counting dyno time, cheaper and easier, and virtually trouble free.