I'm having a bit of a problem starting my car. When the engine is warm, it has the typical hot start problem. After about 20-30 seconds of cranking, it finally turns over. It may stumble for another few seconds before it gets up to idle speed. But afterwards, the engine runs perfectly. As for the fuel system, the accumulator was replaced about 3 years ago. The fuel pump/check valve, fuel filter, and O rings in the primary pressure regulator were replaced within the last year. Now here is where it really gets interesting. If the car has been sitting for more then a day or two, it has problems cold starting. It will usually fire right up for a second then die. This tells me the ignition system is working and so is the cold start valve (directly tested as well). Once the engine starts, it's just like the hot start were it stumbles for a few seconds before reaching idle. I'm not too sure what the problem is here. The technical manual says for hot/cold start problems only, it's the air sensor rest position. However it sits flush with the funnel, so I don't think that's the issue. Is it possible to have a bad warm up regulator and dirty injectors without causing problems once the engine is running? Or do I need to just cave in and get a fuel pressure gauge to test the different pressures? Any suggestions would be greatly appreciated. Thanks, Chris VIN 4099 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/