Cruising/ Steady Throttle Issue..KA-T

[Tictakman]

Hey guys,

Just bought a 98 kouki with a manual swap. Car didnt start without being pushed and dropping the clutch but Ive fixed that. I installed a turbo and Im having an issue with idle while cold but also/or if I rev the car up and let the rpms drop it will die, also if at a cruising speed at 3ish grand holding steady the car will seem to lose power and slowly drop to 1000 rpms if i dont give it more gas or let off...like it bogs out or something. I have timing at 20 degrees...

The car will rev fine and holds 20lbs vac at idle, seems to boost to 10lbs ok but feels a bit sluggish... I boost tested my lines and found a few leaks which I fix, ive also replaced the coolant temp sensor (ecu), cleaned out the air idle control valve, and the O2 sensor but havent had any luck. My turbo kit is below....

gapped plugs at .030
t3/t4
walbro fuel pump
z32 mafs with a 90 bend going into turbo inlet
38mm external gate
BOV not hooked up (to make sure its not leaking)
880CC Delphi injectors w resistors (need to redo these)
jyg fuel rail w external FPR at 39 psi
FMIC
R.S Enthalpy Rom Tune with jumper harness to S14

My next thought is knock sensor?

Any help would be wonderful.

Z

[Walperstyle]

hard to say, check fuel pressure, what are your afr while this is all happening?

[Tictakman]

Not sure of either of those, FP gauge is under the hood and I dont have a wideband...im going to swap a knock sensor and boost leak check again.

[waxball88]

Checj Throttle position sesnsor

[Tictakman]

New info, I checked the codes right when i got home and got 55 which is all good. I cleared the code then went for a drive and then rechecked and ended up pulling code 34...knock sensor. could this be causing my issue?

I also have noticed that this bog issue will occur when i try to hold the rpm, any rpm that is. So rev to 3 grand and hold...slowly and steadily it will bog down, I tried holding it at 6 grand and the same thing....

What do ya think? That makes me feel like its a tps issue but maybe it goes hand in hand w the knock sensor...i dunno.

Ill check the TPS when i get a chance.

Zak