Was running rough engine jumping around wen running little exceleration power, replaced plugs wires cap rotor, and coil, had module tested said it was still good. Was having misfire on 2 and 4 so did tune up, it helped a bit but seemed out of timing, went to start it and it backfired and won't start now so pulled the coil replaced it and tested the module but even w a new coil won't start, its trying but still not getting spark, its getting fuel. I'm at a total loss, could the timing be way off???
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