On Thu, 7 Nov 2002, Bob Blick wrote: *>> I think that if one makes an electronic ignition it should be made to *>> withstand sparks to ground from the output coil (can be 20J). This is *>> *hard*. I doubt that most series auto electronics will withstand this in a *>> modern 'computerised' engine. *> *> *>True. Even the electronic ignition systems in new cars (Toyota in *>particular) do not survive losing a spark plug wire with engine running. So what do you do when you adjust them ?! Put on a dummy load ? I've heard of lead pencils being used for this in a pinch. Peter -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu