Because the pump isn't spinning for 1.5 seconds. The pump spins for a fraction of a second when the car is first energized, but until the engine is running that's it. The pump does not spin as the starter motor is turning the engine. If you're so obsessed with this vapor lock theory, bleed off all your resting pressure (manually depress the air sensor plate), jump the RPM relay (forcing the pump to spin), then try to start the engine. Assuming rest pressure is the only problem with your car, it will fire right up. Fuel vapors are no problem for an 80 PSI pump. Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, "bitsyncmater" <david.mckeen@...> wrote: > > Ask anyone who has had a bad accumlator how their car would start. > Most have to crank for a long time befor it will even fire, then > takes a while untill all cylinders are running correctly. > Your pump takes 1.5 second to bring the pressure up to 75 PSI. > > Why then won't if fire right up after you have full pressure (1.5 > seconds) 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/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> 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/