Have no idea why she is bucking. The car was running fine then all of a sudden she starts bucking in the low RPM while accelerating seems to clear after 3000 rpms but rt back when shifting to next gear and so on. Can it be a fuel issue?

 

I had this problem a while back with my 89 Formula. It was intermittent and would die when I pressed the clutch in. I replaced the computer and haven't had the problem since.