Frank,
I didn't see you mention the Tach drop to 0 in your initial post. That certainly does change things. I've only seen something like that as a voltage regulator was going bad... but afterwards the idle and tach would act erratic.
I don't see how hotter plugs could solve a problem like that... sounds like an electrical issue to me.
You'd definitely see a sub 10 afr on the datalog. Are you able to log ignition advance and voltage?
Quote:
Originally Posted by forte500
John, seems logical but why would the momentary hesitation and drop in Tach (to 0) while driving/accelerating in 3rd. In other words, on one ride - it did it when accelerating in 3rd gear. A brief (felt like ignition cut) hickup and then okay until redline. Couldn't replicate.
Think you could see it in the motec data if it was rich condition? I couldn't see it.
|