on my lancia delta intergrale the cam is not functioning properly. Any ideas?

l am not sure what u mean by ''not functioning properly but more than likely it either has something to do with the timing belt failing/timing chains being too loose from wear, or the problem is that the valves need to be adjusted. Those r the two main things that l can think of.
Adjusting valve clearances on Italian cars, in general, is a complicated & time consuming task. Some cars like Maserati require removing the cams & the cam followers to get to the shims, while others like Fiat have the shims on top of the followers, & one merely needs to depress the follower a little & remove the shim with a magnet. HTH

Have it fixed

Yeah if its what iam thinking it has a life time warrenty