Now you're clear! The flush was very efficient at reducing gunk and other nasty things. The smoother engine idling, and slight increase in response is owing to the combination of the flush and ceratec. One thing though, my 2JZ is a VVTi version, there is an oil pressure filter right next to the VVTi sensor on my engine. The flush did a damn good job of choking the oil pressure filter. When the issue was diagnosed, it took 10 minutes to get that cleaned, that's about it. I can't be certain that it was the flush that caused it, but I can't imagine what else did. So, its doing a pretty good job at cleaning the gunk.
Rao.