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Old 10-30-2015, 07:59 PM   #19
partsbob67
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Join Date: Apr 2005
Location: rohnert park,ca
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Default Re: starts breaking up at 4500 rpm.

Quote:
Originally Posted by buzzinhalfdozen View Post
Bob, never saw a reply about what your 02 sensor does during the issue...goes dead lean, dead rich? That might shed some light on what's happening.
sorry, starts to lean out.
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