TonyLex

1995 ES300 - Check engine light came on last week, got it read and its a cyclinder 1 misfire. Has anyone else had this code? I've noticed that at idle the engine has been knocking quite a bit and also on the highway when I hit 40-45mph it also seems to hesitate some. I had the sparkplugs changed about 6 months ago, so I think they should be ok. Any suggestions on the cause?