car hesitates, then hits boost, then fuel cut

[oneal557]

heres my story .....

my car was running PERFECT, then i put a fmic on, when doing so i noticed rediculous shaft play then it blew the turbo next day.. but car was hitting fuel cut after i hooked up my fmic....

got a new turbo and broke it in...

now it likes to mess around....

it will hesitate unless i barely use any throttle, but if i give it a lil throttle it will hesitate for a few seconds then hit boost really hard then hit ### seems to be fuel cut...

it seemed to run better at night before it was fully warmed up but after it warmed up it started messing up again..... but it was still hitting the fuel cut...

my set up is a 16g turbo 12psi 24x12x3 fmic..
3" gm maf and translator located by tb(venting done right)
stock injectors, translator at stock settings besides injector size.


also the idle just started to fluctuate... sometimes it does sometimes it dont. but only when warmed up.


any ideas of what to check?????

 

[bme91gsx]

Check it for boost leaks. Make sure your white wire is hooked up properly on the translator. And check your datalogger your tune may be way off.

 

[tazndrew04]

id check for leaks first,than go from there,do a boost leak test just to be sure

 

[turbodsm007]

I had the same issue with my Blow throught set up...Were you able to get all the fuel trims to 100% or close to 100%?

 

[oneal557]

well umm... i dont have a wideband nor a datalogger.. .. im too broke for that stuff. i just spent 450 on a new turbo. and boost leak will just make the car slower and stuff but wont make it hesitate, just no power... i can drive without intercooler pipes

another thing is it was running perfect then i did my fmic now it runs like crap.

I had the same issue with my Blow throught set up...Were you able to get all the fuel trims to 100% or close to 100%?

what did you do to fix it???

my car is mostly fixed.. now its just fuel cut.....

i had to rig a 2 1/4 bov pipe thing with my 2 1/2 .. aka electrical tape to make the diameter bigger ... and it slid out and was halfway blocking my pipe.. so i fixed that nd its all good except the fuel cut....