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Registered
Join Date: May 2012
Location: Edmonton, Alberta
Posts: 102
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Not likely one of the O2's. Make sure the Mass Air is clean. Make sure no vacuum leaks or exhaust leaks. Fuel pressure too high or a leaking injector but that would usually set a misfire code on that cylinder a P030X. EVAP purge valve can but should also set a P0445 code.
Hope that helps a bit.
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