SO my brother has my non turbo Z that I sold to him and replaced with my TT. Well when I had it I changed the plugs on it and the injectors and everything was good. He put on the sebring full exhaust with I want to say an X pipe and test pipes. After that the car had a little back fire sorta thing to it which I thought was normal for taking off the restrictive exhaust but it has now gotten to the point of it won't idle without constant backfire. My question it I put in NGK plugs and stock injectors what is the chance that the NGK plugs are fouling out and not causing it to light the air/fuel mixture and I just need to replace them with a better plug? Which ones does everyone else use? Any help would be great!
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Question on the non turbo Z - Nis300owner23:01:47 05/20/08