Just an update on the wagon! My eratic idle and stalling returned to my dismay. After six hours of tearing out the electrical, ECU, fuse panel, relay bracket, and unhooking the wiring harness, I started to check out all of the relays. Turned out the main relay for engine management was eratic. Took the cover off and discovered that one of the leads for the relay magnet was laying on the terminal and not soldered. How this car ran for twenty one years is beyond me! A quick solder job and assembly put me back on the road. So be sure to tap those relays when testing, Steven.