I did a fresh install. Now all Engine sounds are gone! Tire sounds and everything works, but no engine sounds. Till now i tested on Skip Barber and Spark F2
ok, i got them back. i somehow thought that "18L16VEngine.rfcmp" was a part of a mod....not a basic part of RF2
I don't think 18L16VEngine.rfcmp is a basic part of rF2, they seem to be the engine sounds for the rFtrainer as AFAIK ISI haven't released them in RFCMP format yet. Unless you created the RFCMP yourself with the MAS2 utility, my guess is they're part of some rTrainer mod you downloaded from somewhere.
umm...but why does uninstalling it also affect the sound of all other cars? i didn't have sound in any car without that component
It shouldn't affect the sounds of all the other cars, that it does tends to suggest you've messed up your install in some way. What folders did you install the 'core' and 'data and settings' to, also have you been running the mod manager in the Core folder to install stuff?