So I have changed the plugs and coil packs its still showing a misfire on cylinders 123 any more ideas I'm lost now is there possibly separate ecu,s. Its ok for the first half an hour driving then the misfire starts please please help lol
My lexus is200 started misfiring I put it on the machine and it said miss fire cylinders 123 so changed the three coil packs it was ok for an hour then started again. It's fine when I start it and drive then starts again after 40 minutes or so. The engine light starts flashing please help it's driving me mad