You dropped the car off with no appointment and we had to work you into the schedule. That's why it took so long . We replaced two ignition coils and the related spark plugs that was the miss-fire. As I explained when I gave you the estimate over the phone and when you picked the vehicle up.so I don't know what more explanation I could have said. So the matter of fact is I'm no longer available to repair your239000 mile 2000 Lexus or any other vehicle . Sorry it didn't work out.