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That's an easyone. Scan it and if you have codes P0301 and P0303 that means that you have a bad spark plugs or cable. The best thing to do is tune-up. You can do it yourself,the spurg plugs are on the top of the engine,mind as well replace the cables too.

Bad spurk plugs or cables. Tune-up will fix your problem

could also be one of the coils, each one runs 2 cylinders, when you have 2 go bad at the same time check that first

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12y ago
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Q: What causes a misfire in 1 n 3 cylinder in a 2000 Chevy Prizm?
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