i have a 04 xfire limted auto .. iwaS leaving work and i got on it u know in this car it likes to kick down and actually likes to move when u do this . i let off and it started to sputter so i pull into a parking lot turn it off and it ran good but the check engine was still on took it to the shop. he ran it through the computer it said #1 cylinder mis fire .. i know i could of jumped the timing on this car what else coulde it be.. he said the gas... wel the lights off for now shouldnt come back on hopefully

eric