ok i just put the motor in got everything hooked up i fired it up yesterday and it ran good needed tuned but i mean it started and stayed runing..i started it up today and it fires up but dies instantly,i didnt change anything that would keep it from running since yesterday im totally clueless on why it wont stay running after i started it up twice and it ran and now it just dies....it has spark and it has fuel
can anyone help?

 

You really need a tune!
What injectors/management are on the car?
If the injectors are larger than stock you should really try to get a base map on the car or adjust for the increased fuel, that will be your starting point.

 

well i got the turbo kit with 550rc injectors and it was already tuned on neptune with those injectors,but like i said it started yesterday fine and ran pretty smoth and now it cranks fires and dies instantly prettymuch
also i plan on getting it retuned as soon as i can drive it waiting on a slim fan and power steering bracket

 

yeah man deff need a tune its almost danerous to start the car without having it tuned first

 

What if you try to give it some gas for a little bit after you crank it over.

 

tried that once but did the same thing

 

So even when you were applying throttle it stalled out?

 

yeh

 

is there anything that would or could be cutting it off?

 

How is that possible? You got to start it to be able to tune it!

 

I would say your probably getting to much fuel so the motor is getting drowned or there is a fuel issue such as leaking try to have someone look at your injectors while you start or prime it. Sometimes those o-rings snap or tear and leak.

 

You need a basemap for that setup. Not some tune with the same injectors. Every motor is different. You also need a wideband to monitor your AFR at idle. You probably flooded the motor by cranking it over too much.

 

i will check the injectors tomorrow but i do have a wideband its kinda hard to read when the motor wont stay running tho

 

and if its flooded how can i un flood it lol it cranks over and starts it just dies after that intitial fireup.

 

and why would it have started the first 3 times and ran fine if it was the basemap

 

Well what was it displaying when the car was actually on the day before?
Sounds like the car is not getting fuel if it stalls out after it actually starts up.

 

 

You can't "un-flood" it it just gets to much fuel because of the basemap so that would need fixed. For example the other day I finally got my car running ran awesome and the next night when it was like 20-30 degrees colder wouldn't stay running at all. Just check your not leaking anything and does it stay running once it fires up can you keep it going with giving it throttle or does it still die?

 

i put the stock map sensor back on and it runs,i think i hooked the 3bar up wrong im gunna check it out tomorro but it runs now

 

u can still put down a basemap and make some tiny adjustments as far as injector size and fuel pressure just to let the ecu know wut kind of fuel supply its working with

 

I just consider that as a basemap.