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truck problems..rough running

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i have a 95 s10 2.2l and yesterday it had a slight sputter problem at quarter throttle. i checked the plugs, put them back in and it ran like theeres a cylinder not firing. so i bought new plugs,wire and wired them. started it up and same. check the wires to make sure they were rite and they numbers 2 and 3 were backwards. fixed that, and same, now i went and unplugs each wire to see find out which one isnt firing. it is number 1. i need help,give some adivece on how to fix it. no matter what i do i cant get it to fire.

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Does this truck have fuel injection? If so your injector may be plugged.

Yes... or the coil for the cyl. maybe loose or tired

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