TwinTurbo.NET: Nissan 300ZX forum - Re: Where all of the plugs on that bank.. black like that?
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Subject Re: Where all of the plugs on that bank.. black like that?
     
Posted by slcZ32 on February 26, 2011 at 1:20 PM
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In Reply To Where all of the plugs on that bank.. black like that? posted by KongZTT GT28RS MD on February 26, 2011 at 01:02 PM
     
Message :It could be a sticking fuel injector or possibly a bad 02 sensor..
:But you need to do more research.
:Did the car run okay?.. even with the fuel smell?


yes the car runs a little rough but not bad, all 3 sparkplugs on the driver side are coming out black but not to the point where they are wet, they are dry but super black. I'm leaning towards the O2 sensor or maybe a fuel preassure regulator? i dont know sight.... the O2 sensor was replaced back in November 10, i have put headers on my car and used the o2 sensors that i got back in Nov and i cleaned them out with carb cleaner would that mess up the o2 sensor?

     
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