ovp only controls the "E" in the cis-e system. It would cause rough idle, stalling, but would always restart.

Op, check fuel pressure when the car stalls, then check for spark.

The only things that can cause the stalling when warm with no restart until cold again are:

1. Fuel pump, or fuel pump relay
2. Crank position sensor. Should ohm ok at 1200ohms.
3. Ignition system failure including Distributer cap, rotor, and possibly wires.

Thats it.

__________________
Eugene

10 E63 AMG
93 300te 4matic
07 BMW X3
14 Ford F-150 Fx2