chasing an intermittent 'no start'

BlackBandit

God loves Buicks!
Joined
Mar 29, 2003
I have an intermittent no start/run condition. Sometimes when it's running it runs like dog doo. By this I mean it idles at 500 rpm and misses and the IAC max's out. When it does this it will clear up while it free revs. Other times it will run fine and the IAC will drop back down to ~12 at 800 rpm. Other times I get no spark. If I only get 5.5 VDC on the signal output of the cam sensor instead of the normal 7.5 should it still work or could that cause some of these issues.
 
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