It sounds like the warm up ciruit is not functioning correctly. If the car cranks immediately, that means the cold start valve and the thermo time switch are fine. Try this: Have someone hold the microswitch on the throttle spool in while you start the car. Hold the switch in to see if the engine will run. Other then that, it does indeen sound like you might have a bad conrol pressure regulator. -Robert vin 6585 --- In dmcnews@xxxx, "Rob van der Veer" <rob.van.der.veer@xxxx> wrote: > Thank you Robert, it starts to make sense now, but I'm still not quite sure. > > I'm having problems with cold starting. Warm starts are perfect. At the > first crank, the engine starts very eager, but after 2 or three seconds, the > engine starts stalling en after 15 seconds or so, it stops <SNIP>