[J-red]

Started misfiring badly and tc light on at same time 4-5 weeks ago.
Thought was plastic upper intake warpage again, after seeing slight antifreeze leak around intake. It was repl. once at 70k, now 127k. Upon inspect, intake degraded, but not that bad, cleaned up and reused. Read about stepped bushing kit from Au-Ve-Co, but couldn't get asap. Made my own kit from bronze bushing and existing aluminum tube epoxied in. Changed to 180 deg. thermostat, as well. Repl. wires(2nd time) and plugs(1st time). Repl. fuel injector o'rings with o'reillys borg warner's, I think. Changed antifreeze, and oil. Car ran perfect, TC light was off. Thought I was genius. Started misfiring badly and tc light came on driving interstate in rain. Car rattles/vibrates badly. I think needs passenger axle repl. as well. Is it possible the TC is disabled if car is running poorly or vibration is bad? Any ideas where I should start on the poor running condition??? Thanks.