a misfire in my supercharged cavalier was driving me nuts, cylinder #2. I checked my vacuum system, fuel system, plugs, ignition module, everything.

turned out i had loose intake manifold bolts and there was an undetectable leak. more than one bolt was loose. make sure all his manifold bolts are nice and tight. might even take them out, use some locktite and put them back in. may not be your issue but its always something simple when you find out what it is that makes you smack ur head lol..

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2003 Mazda B3000, auto, extended cab, dual sport, 2x4
2004 Chevy Cavalier, 2dr, supercharged, 5spd, few other mods

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