I *think* the result will only be that the timing is offset slightly becasue the ignition amplifier is triggered when polarity switches (ie the waveform passes through 0v). EFI systems do NOT like being plugged in backwards FWIW, they miscalculate the "missing tooth" Martin (who's been researching EFI again...) Marc Levy wrote: > Does the pulse coil have polarity?? Maybe at some > point the wires in the connector were reversed? > > I know the car will RUN either way, but maybe the > signal from the pickup is distorted if the polarity is > reversed. > > __________________________________________________________ > No need to miss a message. Get email on-the-go > with Yahoo! Mail for Mobile. Get started. > http://mobile.yahoo.com/mail <http://mobile.yahoo.com/mail> > > [Non-text portions of this message have been removed] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/