[Schulisco]

Weird, indeed.

I experienced a similar behaviour: I had to crank the engine much longer after the car was sitting a while due to an "emptied check valve" (no ball and no sppring inside anymore, therefore the fuel ran back to the tank; cranking that longer gave the fuel pump the time to refill the fuel lines) and the bad fuel accumulator as I wrote sooner. BUT: Still the engine started after a few seconds cranking....but your's won't start at all with the CSV connected...

You could check the CSV by plugging it manually with a switch to ground while the engine is running. If the CSV works, it will inject fuel and riches the mixture that much, that a warm idling engine will stall or at least start surging.
While driving / accelarating and powering the CSV you richen the mixture as well. Depending on the current mixture either the car gains or looses power. With this method I diagnosed (wihtout a CO tester) that the mixture on my car is too lean under load. The difference of power while accelerating with a lean mixture compared to a proper/richer mixture is tremendous...

Refer to the schematics on how to put the switch in the circuit for the CSV (similarly to replace the thermo time switch with a manual switch...)





Thomas