> Thanks Dennis, I didn't realize the racing technology I used as a "kid" was > making it into the general population of factory vehicles. Were you using 1 coil per 2 cylinders in a waste-fire configuration or 2 coils to get extended dwell time ? If the former, why (in a racing application) ? Steve. ====================================================== Steve Baldwin Electronic Product Design TLA Microsystems Ltd Microcontroller Specialists PO Box 15-680, New Lynn http://www.tla.co.nz Auckland, New Zealand ph +64 9 820-2221 email: steveb@tla.co.nz fax +64 9 820-1929 ======================================================