I am really running out of options now. I switched back to internal VB921 ignitors...same issue. Then I switched back to the opto input circuit shown here: http://megasquirt.sourceforge.net/extra/setup-neon.html...same issue. My next attempt will be to switch to the opto input circuit shown here: http://www.msextra.com/ms2extra/MS2-Extra_Neon.htm. Then I will swap back to MS1Extra and see if I can gather more information.Corbin'95 ESI-TNow with more power and fewer leaksGimme fuel...Gimme fire...Gimme that which I desire