starts good runs for while then dies

[canonize-ryda]

I have the turbo 4g63 and just finished the rebuild and i started the car up and got it to run. Now it runs good and all after i uped the fuel pressure a little and messed with the c.a.s.. But i have a problem where it wants to die. I can save it by getting to the throttle quick enough but if not it dies. It starts right up and runs for a few more minutes.

I got it to warm up and it died say 4 times. I would like to figure this out. Timing was spot on when checked last. I have no cat to check as all i am running is a 3 inch down pipe.

Thanks

 

[92AWDHX40]

Cat shouldnt matter, do boost leak test, check your compression new build check it anyway takes a short time, check fuel pump relay, check ecu open it up and inspect it.

 

[canonize-ryda]

I took the Ecu apart before the build to check it. I know the fuel pump running and i do have a 255lph to install. Ill do a compression test sometime in the morning. I have lost daylight and with it its warmth so im down for a beer or 2 now.

My turbo wastegate flapper doesnt seem to sit tight maybe that affects it some?

 

[dracon8780]

if it is a new rebuild, engine will run rough at idle and die some times for the first 300 to 400 miles until everything finds its groove

 

[HustlerTalon]

check your MAS

 

[canonize-ryda]

Yea it actually hasn't died but maybe 2 times since then. I'm at 50 miles and it seems to be getting smoother. Still vibrates alot since i removed the balance shafts. But now i have a oil leak off the turbo feed line. I Bought a restricter that pin holes the oil into the turbo but it leaks badly where it connects to the ss line. Thats my new problem atm.

 

[my98gsx]

ide start looking for a vacume leak, or adjust the trottle body bliss skrew (on the top). you may need to raise your idle a bit (common problem for stalling out)

 

[canonize-ryda]

Just to follow up. I swapped in a 90 awd ecu and its been running perfect ever since.