Cavalier Starting in the 1980s. the Cavalier made a name for itself by offering an affordable 2 and 4 door compact.
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2000 cavalier p0300 misfire code

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Old April 30th, 2013, 8:47 PM
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Default 2000 cavalier p0300 misfire code

hey so i got a check engine light today after rough idling of a cylinder 3 misfire so i changed the plugs and wires to try and solve it.

after changing them the car runs smoothly and has no problems but i got a new code of p0300 random cylinder misfire.

is this a dummy code or something? will it go away? the car seems to be fixed and is running great. help would be awesome, thanks.
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