Cheat code 43 is 'tuning crasher'. It means your game added vehicle tuning parts (e.g. nitro, bumpers) etc. to your vehicle without the server's instruction to do so, and/or added tunable parts which are not valid. This was likely caused by a mod.
I have unbanned you but please refrain from using mods which affect game models or vehicles in this way in the future.
Sound, texture, graphics, first-person camera mods and so on are fine. If they don't give you an advantage or affect others.