Bryan, check the Base Idle Set Screw. Remember, the car was surging and I had to adjust it to compensate when the idle stabilized (after it gets to operating temps). Also, the ECU was recapped by Terry Posten in late 2007 and the car has been garaged most of the time and I've only added a few thousand miles on the car since then so it's a pretty slim chance that it's the ECU caps. Last thing, I was going to send out the datalogger docking station/charger today to the Las Vegas address that you gave me, but now you claim that you are from Palmdale, where do you want me to send it?