Just trying to figure out how to diagnose the source of failure and fix it finally...
Hot weather - Secondaries open after startup, fail everytime afterward.
Cold weather - Secondaries open numerous times but flutter/pulse. Or secondaries act the same way as in hot weather. Varies randomly between the two.
Background info : Never had complete failure until after spark plug replacement, in which I moved the IMRC box downward slightly for access and removed its cover (out of curiosity). Previous to this point I was still experiencing slight fluttering/pulsing but never complete failure.
