Mads, The cold start valve can be tested very easy, Unscrew it and lay it on a paper towell on a piece of cloth or something to absorb the little bit of gas coming out. If it continus to squirt after about eight seconds, then I would look into replacing the thermo time switch. Check all the wiring on the micro switch for the idle speed motor unit, make sure your connections are ok on the idle speed motor, and then you may want to look into the air flow meter adjustment. If all these things are ok to the best of your knowledge, the the idle speed thermister may be bad in the water pipe. I will put it on the web site tomorrow. Follow this link.http://www.specialtauto.com/engine.htm John hervey www.specialTauto.com --- In dmcnews@xxxx, debruin@xxxx wrote: > I'm looking for some advise on a small problem I have. Ever since I > bought my D in june last year it always starts at about 3000RPM when > the engine is hot. When I start him in the morning, everything is > fine. But when I drive to the gasstation ,for instance, and start him > up after I filled him up, it really makes a lot of noise. He does > that for a few seconds and then settles down at about 700RPM. > Can someone tell me what is causing this? A fellow DeLorean owner > said it could be my coldstart valve. Is there a way to test this? > Every advise is welcome! > > Mads de Bruin > VIN#06881 > > PS: Does anybody know something about the history of my VIN number?