Hot start-wont start

[PeterBergin at aol.com]

I would guess the fuel pump check valve, you can check for  fuel pressure by 
loosening a fuel line, hopping to see a squirt.   BE CAREFULL.
 
On my old 5k avant, I had a similar problem which took forever to  find.  
Ended up that after a timing belt job, the shop sheared off part of  the key that 
was cast into the crank pulley.  It would move a little  bit and if it was at 
its extreme the car would not warm start.  Don't  know if that could happen 
on a 200 though.
 
Pete