I was looking for zener diode info for ECU mods ( dam, Audi content slipped in) and found this site http://www.hippy.freeserve.co.uk/index.htm .If your having a slow day at work check out this guys ramblings on life. Kevin Phillips, W.Mass 1990 200TQ 136,000 miles 1995 Saab 900 SET Ragtop 107,000 miles