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Idle Sputter

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GsxProject

15+ Year Contributor
63
0
Aug 24, 2006
Brooklyn, New York
first i'll give everyone the rundown on my car
upgrades: 4g63t swap, stock 14b tdo5h at stock boost level, mukini fuel rail, 450 or either 550 rc injectors(not to sure), walboro 255, upc tubular exhaust manifold, act stage 3 6puck unsprung w/ pressure plate(but nothing to do with my problem). pretty much nothing major!!!

when i start my car it doesn't idle between 2-3 grand, it sits at 1 grand steadily, on most older cars when u start up the idle will jump a lil higher because it's a cold start(correct me if i'm wrong), and after a couple of minutes(no set time, just sparrattic) the car idles like shit, sputtering as if it's not getting enough gas or air and seems to want to stall(sometimes it does sometimes it doesn't), but on the times that it doesn't stall and it's idling like shit when it stops idling like shit it goes back to a steady idle at 1 grand firmly.

Can anyone tell me why this is....and help me try to trouble shoot it!!!!
 
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