Hey Guys, I have a 93' Celica. When I start it up, it often idols somewhat rough and has quite a bad vibration either hot or cold, however, it doesn't always do it. It usually idles at around 900 RPM, but the tacho can tend to bounce around a bit. However once the car is going, it's no problem. It runs like a new car, it has power, it's responsive, I can find it a little heavy on fuel but it runs fine though. Now so far, the following has been replaced: - ECU - Spark Plugs - Spark Plug Leads - All the fuses - PVC Valve - Alternator - The injectors have been taken out and cleaned - The clutch - The throttle body has been cleaned out - MAP sensor - Cat Back stainless steel exhaust system And god only knows what else. To me, it feels like a miss fire. I'll take a video next time I cold start it and see if it does it. (which it most likely will) Any ideas guys? Thanks :)