Car starts, but keeps dying

[Luderacer14]

I installed a used engine, compression is good, has spark and fuel. The problem is, the car starts but i have to keep it wot for it to stay started. I step on the gas harder and it dies. Sometimes it just raises to 4000 rpm by itself than losses all power. This is weird. I have crower stage 2 cams, z32 maf, jwt tune. My wideband is reading max lean right now. Any ideas? Could a bad maf cause this? The rear o2 sensore is not hooked up at all and the egr is blocked off.

[Florida240sx]

So if you jsut start the car it will automatically die unless you hit the throttle?Either you have a huge vaccum leak, or your cam timing is off. I jsut went throught the cam itming, my chain rotated one click so both my cams were off one tooth. Car would start but immediately die. my wideband was reading rich I think...I didn't really watch it..... I had v2 cams with enthalpy tune and z32mafs

[1995240sxSE]

what is your timing at I went through that too cam timing was dead on, dizzy was a tooth off.(they sorta have teeth)

also where is your iacv line routed to?
Modified by 1995240sxSE at 11:08 AM 7/14/2006

[Luderacer14]

I have a 96, my cam timing is dead on, because when i installed the v2, i made sure the lobes were facing out second mark on crank. Anyways, i cranked it up today and it idled at 500 with 10 vac. When i gave it gas, it would bog and sputter. I'm gonna try to move the distributer back and forth a tooth tomorrow and see what happens. My iacv has not been touched, i did not move it or anything.