Cuts out on 1994 BMW 325is

I plan on buying this car but the guy tells me that it Runs and drives strong, but after it warms up it cuts out. he was told it needs a coil pack or cold start injector fixed is that what it is? if not what could it be and if so is it a easy (CHEAP) Fix???

Asked by for the 1994 BMW 325is
You need to make sure what's the cause and for that you need a proper diagnostic performed in a possible BMW specialty shop.
It could be bad sensor, fuel pump, etc...