ok looked and can't find anything .03 cladded 4x4 102,000miles, problem is , if i takeoff from a light normal, it might backfire goin' into second gear, but not all the time and only when goin' from first to second gear and fine through the rest of the gears. sometimes seems like it's loading up or misfiring before i accelerate.gettin' on the freeway is worse. backfiring on acceleration through first and second gear but fine through the rest of the gears. had a p0301 code missfire cylinder 1.any thoughts??