Thread: code po0303

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  1. #1 code po0303 
    SE Level Member mtz956's Avatar
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    need help my gtp got ses ligth i was trying out my boost and got this .
    took to autozone they told me it was cylinder#3 misfire. i change the plugs,wires and the coil. still the same misfire.same cylinder. going to check the fuelinjector but dought its that. what would it be if i checked all that?
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  2. #2 Re: code po0303 
    GTP Level Member 01gpgt01's Avatar
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    Quote Originally Posted by mtz956 View Post
    need help my gtp got ses ligth i was trying out my boost and got this .
    took to autozone they told me it was cylinder#3 misfire. i change the plugs,wires and the coil. still the same misfire.same cylinder. going to check the fuelinjector but dought its that. what would it be if i checked all that?
    Swap around the injector and see if the missfire moves. If it doesnt Id do a Compression test
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

    2009 Hummer H3 Solar flare premium
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  3. #3 Re: code po0303 
    The mod from over yonder TheOtherNick's Avatar
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    Is the car stock?
    01 gtp-big cam e85 dd 78dodge- guzzling fuel 05 cummins- rollin coal
    SMGPFC Two Nipple General
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