Cant find whats wrong with my fiat bravo....

Could somebody help me please ?

I have a fiat bravo from 98. 1.4
I keep having the following problem : when the car gets hot it just shuts down.
I have to wait for a little while and then the car starts again...

Nobody seems to be able to point out what it is.

Some say it is linked to the crank position sensor
Some other say I have to change the throttle body on the car.

Did anybody ever have this problem ?
Would anyone knows what it could be ?

I would appreciate so much an advice.

Franck

I may be wrong. I believe this car has a GM style ignition control module. IF it is they should be cheap enough to try the "toss it in" and see if it works approach.