Answered: WHAT DO THESE CODE MEAN ON A 2005 NISSAN ALTIM 2.5L SEDAN

Hi there,

There are only 2 codes here.

P0300 multiple cylinder misfire

P0444 purge control solenoid malfunction.

I would actually start with the purge control valve. If it's stuck open, it may be putting to many fuel vapors into the intake manifold and causing engine misfires.

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