lil_hulk87gt

ok so if my car sits o say for 2-3 hours or over night and i go to start her up starts and idles no problem. now say i start from sitting over night and go to the gas station and get gas (maybe a 2 min drive), turn the car off then when im done go to start she gives a little put put and thats it. now if i go to start it but keep the gas floored she will start right up but idles really bad. the car should idle around 800-900 rpms but anything under 1000rpms the car will surge untill maybe 2-3 mins of just idleing or driving. with winter time coming im trying to have a reliable starting car to get me from point a to point b you no. thanks for the help guys

mjr46

need to do a fuel pressure test and check for leak down

AdderMk2

sounds to me like a leaky injector

lil_hulk87gt

i do have a fuel pressure guage on the sharder and an adjustible regulator set to 38-40 psi. i have never done a leak down test how do i do that.

AdderMk2

how fast does the pressure bleed down after you turn the key to the "run" position

50joe916

check IAC for carbon build up behing the sensor that could cause the surging idle

smokedog

and you should check and clean if needed the element inside Mass Air. This along with egr eliminator, plugs and IAC totally changed the way my car idled and it went from 800-1200 and sometimes died on cold starts.

lil_hulk87gt

srry it been awhile since i posted back to this problem.. i am still having the problem but my computer crashed and had to buy another one (boo--hoo) any ways the problem is continuing. i havent really done n e thing with the car being as i work so damn much now and the holidays. but i have been starting the car once a week and ill go to rev up a bit and wen i step on the gas the car wants to die. it will do the same thing if i take it out for a drive but wen the car gets up to operating temps she will rev and drive fine. thanks for the help