misfire problem

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04-10-2011, 11:11 PM

bigboy96SS

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Join Date: Apr 2011

Posts: 1

misfire problem

This is my first time on here and I could really use some help. I have a 96 SS it is throwing the po300 code. I have changed the plugs and wires and I really don't know where to go from there. The car has a slight tap going on by cylinder 2 and if you give it gas it pops back from the intake. Any ideas?

04-11-2011, 12:39 AM

my1994z28

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Join Date: Jan 2008

Location: warren,michigan

Posts: 1,903

Re: misfire problem

Is it like a "back fire"???I would check the air inlet elbow for tares,rips,ect..check all the vacuum lines as well.You could also have a dead injector..leaking intake gasket..

Last edited by my1994z28; 04-11-2011 at 12:45 AM.