The 5K stutter cutout misfire stumble breakup Thread [Merged 7-8]

[Newlogics]

My project 92 Talon just wouldn't be nice to me.

I figured that my smoking problem was due to my turbo leaking oil, since upper IC pipe had whole bunch of oil in it.

Now more porblems arize....

1st: It wouldn't idle normally, instead it revs up to 2K and drops back to 1K every like 2 sec. if idle is adjusted to be lower then 1100 rpm

2nd: When rmp reach 5K under WOT, it hesitates violently. As soon as rpms drop a bit, it's fine again.

(The good thing I fix the unlock buttons, 'cause it had shaved handles and you couldn't get inside by any means except a trunk....)

 

[xreaction122]

i will check the injectors first thing tmw
but i doubt its the injectors since it was put in not too long ago.

 

[GSTspyder17]

ok heres my problem i cant figure out..

i will go into WOT the car will boost and pull somewhat then around 3800-4900 it will feel like it struggles to get up top throughout the rpm's and then around 5000rpm it just feels normal and pulls hard to redline....also ive noticed at times when my wastegate starts to dump(hits full boost) it sounds like its sputtering, if i continue to hold down the pedal after a while it just switches back to normal and pulls hard and smooth

fuel filter was replaced
I just put in a new set of NGK 7es plugs
Magncore wires
boost leak test and took care of everything, only leak now is from two injectors seals..
((can this really effect anything?))


This is my setup:
small 16g- 14psi
external wastegate
SMIC
2.5 downpipe
3" exhaust no cat

Someone help

 

[zack4g63s]

I use a upper IC pipe to connect pressure plug to TB. I tried it with both, throttle open and closed. With closed throttle, I'm able to make a niddle move a notch.... with open it feels like pumping into open air...

What about intake or exhaust valves being open, you may not hear it bc its blowing out the rear of the car.