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2001 Mazda Protege 2.0 code P0300, 175 psi, new plugs, ign wires, good fuel press., good spark. Has unstable idle. What might be the cause?

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Http://www.mazda626.net/topic/33317-to-all-the-people-having-issues-with-the-p1195-p0300/

try this site out for size....i post to this site regularyl as well...if it does not solve your problem, get back to me

Posted on Sep 10, 2010

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Posted on Jan 02, 2017

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