My 2003 ford escort zx2 is being difficult?

I like my zx2 but for the past month my engine light keeps coming in saying spark plug cylinder 1&4 randomly misfired, or P0301&P0304. I've replaced the spark plugs, spark plug wires, and the ignition coil pack (were all the spark plug wires connect, didn't know if I got the name wrong) and it seems to happen right as I'm accelerating. Is this bad for my car for one? And two has anybody else had this problem? If not does anybody know of a good website to ask this question on

Try focusfanatics.com - great site great info available. I was going to say coil pack - but you got that already swapped out… I had a 2000 SE with the zetec. 147k miles when sold) - but never those codes Clean the MAF sensor, and check the PCV valve it could be a lean misfire (at least checking clean is free) - but the site above would be your best bet.

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