[3D914]

Brad,

Thanks for the "seat of your pants" perspective. I can relate completely to what you're saying. I was just bugged by the fact that it (ECU knob) was behaving completely backwards fromn usual.

What's weird is that just this afternoon I was down at the Porsche garage to get some feedback from Don. I took the freeway so the engine temp was nice and warm (3/4 on my dufus temp gauge). When I pulled into the parking lot to let it idle it wanted to die again. So I held my foot on the pedal at about 1200rpms for a bit and took the foot off. It dropped to around 700, but still idled so that I could get back and adjust the ECU knob. I turned it CW (richer) expecting the idle to pick up, but it dropped. So I turned it CCW (leaner) and idle picked up. I needed to turn it all the way CCW to get it to idle at ~950rpms without dropping off at all.

SO what ever occured that appeared to flip the ECU knob results has dissappeared. I've adopted your approach to setting the idle Brad. I guess I'm expecting too much from this 30 year old system.

Thanks again all,