DifferentPointofView,
Thanks for the suggestion about AutoZone. I found a colleague at work who is bringing his in this time. I'm sure if I continue messing around with this, that I'll either need a scanner or something like the ScanGauge.
I need better instrumentation to baseline and measure temperature changes in the engine compartment and perhaps the transmission cooler line. I am not willing to hazard a $6000 engine using only empirical observation and the gauges on the dash.
I did mods before the Check Engine light came on - you can see them in post 17:
http://ecomodder.com/forum/showpost....2&postcount=17