Bruce Plecan wrote: > > No, if using an optical, or inline VSS then 2,000 ppm. > > | Do all 730 ECM proms look for the same number of VSS pulses per mile? > | What should that figure be? And if magnetic, then 4000 or 28000 ppm. Perhaps other values too. -- Ludis Langens ludis (at) cruzers (dot) com Mac, Fiero, & engine controller goodies: http://www.cruzers.com/~ludis/