[vash]

the main reason a cold start valve fails is the thermswitch. the CSV is not going to spray, unless the thermswitch is cooler than 95 degrees and the starter is turning. and i think the thermswitch only lets the CSV spray for around 10 secs.

ok here is what you need to do. with the car cold, disconnect the CSV, connect a test light across the terminals (or continuity meter?) and have someone crank the motor over. the light works, then the harness is good and the CSV is getting juice. loosen the fuel line to the CSV and have the same buddy crank the motor. fuel should spray, if not check the supply line coming from the fuel dist. IF the test light doesnt come up, then you need to put a multi meter on a 12v source and probe the either terminals that connect to the CSV. one should get a reading the other should not. if neither lights the meter, then you need to test the thermo time switch. good luck.

just for info the other causes of a cold start issue are, lack of fuel pressure, sticky airflow sensor, aux air valve not opening (you know this may be the issue, because if this is bad, the car will only start with the foot on the accelarator),CSV, sticking control plunger, restricted injectors.