Question about 2000 Mazda Protege
Car with check engine light on. Diagnosis cat not up to par. replaced cat and ox sensor. check engine light back on. Now running rough at idle. Diagnosis now is egr valve, noticed low vacume. Any thaughts?
I read it could be the mass air flow sensor and or faulty spark plugs. also be sure to check all the little vaccum hoses for cracks.
Posted on Sep 20, 2008
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Posted on Jan 02, 2017
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