Question about 1996 Mazda Protege

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96 Protege....Rough idle in D Ok in P or N. Have checked all the usual suspects.... Also had throttle body cleaned, checked vacuum hoses and did tune-up....fuel filter is old, but don't think that is the problem

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One thing that can cause this is the o2 censor and a clogged catalytic converter

Posted on Feb 11, 2010

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