Thread: vacuum leak or bad egr

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  1. #1 vacuum leak or bad egr 
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    i got a rebuilt 3800 sc and it has rough idle it has the vs cam in it and it shows on my scanner code 300 misfire i open the egr and the car stayed running did not effect it and i also unplugged the maf sensor still ran i also have the phelunic spacer between the blower and the lower intake does any body have clue
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  2. #2 Re: vacuum leak or bad egr 
    DUI BABY Bio248's Avatar
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    the cam will probably produce the P0300 code regardless of what you do. no vacuum leaks?
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