Mechanics

CODE P0304 MISFIRE IN CYLINDER 4

2001 Nissan Altima • 152,000 miles

Hello i've got a 2001 Nissan Altima with how do I go about finding the problem and rectifying it? I've changed the intake gasket approximately 72K miles ago, don't know if that may help with this question.
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Jpeters1
May 24, 2012.




Does it missfire more with the ac on if the ac works?
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Saturntech9
May 24, 2012.
Actually when the ac is on the vibration is less, but at idle and driving it is noticeable.

Tiny
Jpeters1
May 24, 2012.

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