Need help for engine stalling evo3 engine!!

[zero2hundred]

Hi sifus out there, pls enlightenme whats the problem with my engine lately, im using 4g63t evo 3 and im having bad engine stalling problem now, ive no problem when smooth crusing and boosting but the problem came when i off pedal and clutch release to neutral and brake engine seemed to stall and if lucky is rpm dropped to the lowest point and slowly climb back. When ive done at my side now is i took out IAC and replaced another and try and also my bov...both of these dont seem to have problem ..i also dunno whats wrong now..

 

[KenDiriwan]

Spark plug/plug cable ?

 

[zero2hundred]

yea bro both of that already changed not long ago..

 

[tauto]

I had encountered a similar problem, it could be just a vacuum leak

 

[zero2hundred]

i also thought of that bro....will have a check on hoses today i hope is only hose leakage problem if not this problem really give me headachea d..i expected the worst to happen :(

 

[tauto]

Good luck bro, I understand the frustration haha
hopefully its just a hose leakage

 

[zero2hundred]

haha i hope so sigh

 

[sweelt]

Hi sifus out there, pls enlightenme whats the problem with my engine lately, im using 4g63t evo 3 and im having bad engine stalling problem now, ive no problem when smooth crusing and boosting but the problem came when i off pedal and clutch release to neutral and brake engine seemed to stall and if lucky is rpm dropped to the lowest point and slowly climb back. When ive done at my side now is i took out IAC and replaced another and try and also my bov...both of these dont seem to have problem ..i also dunno whats wrong now..

suspect iac/isc or hose leaked.
Air-con ON during bad idle ?
And, do you compensate bad ilde by turning biss screw ?

 

[zero2hundred]

i already replaced iac but doesnt seem a problem to it, had no problem with idling all gone pretty smooth even stand still or withh aircon on/off..the car will only went stalling when i was releasing acceleration and gear went neutral n start braking/stopping my car...for the hoses will check today..i just hope not anything related to electronic that will be very pening for me haha

 

[sweelt]

now i catch it. Maybe Brake servo leaked, happened to my 93t. Bad braking issue. and i notice big rpm drop but not stalling when press brake pedal.
i not sifu, but i base on observation only.

 

[zero2hundred]

ok i will check my brake servo also but braking no problem all good..just brake and engine go stall..thx for the sharing bro..

 

[y2188]

If you release throttle without braking would it stall?

 

[zero2hundred]

yes...T_T...in this case the engine wont stall immediately just the rpm goes down very fast like going to stall..but i do noticed one thing when engine was cold everything seemed ok not until the engine fully warmed up and cruise until certain distance the problem come d..u can feel it more obvious...

 

[zero2hundred]

Just want to clarify can be failure turbo actuator like actuator blockage when the gases no way out after boosting and returned which choked my engine and gone stalling ? Sifu pls enlighten me..is that possible? i got everything checked today like all the hoses and piping but no where leak...actuator is the last thing i havnt check..if its still not actuator problem my nightmare would be ecu d.. T_T

 

[zero2hundred]

my issue is exactly like that follow the link below : https://youtu.be/vWtToW-cSBA

 

[vr2turbo]

Is your idling OK? I had this problem before, I tune the idling higher.....lol

 

[vr2turbo]

yes...T_T...in this case the engine wont stall immediately just the rpm goes down very fast like going to stall..but i do noticed one thing when engine was cold everything seemed ok not until the engine fully warmed up and cruise until certain distance the problem come d..u can feel it more obvious...

Engine cold, your cold start functioning and idling is higher....

 

[kurt_629]

Is your idling OK? I had this problem before, I tune the idling higher.....lol

I think too high idling causes this..

I used to have this problem too if you recall my threads.
I downgrade from 272 high cam to stock and everything back to normal.

 

[vr2turbo]

I think too high idling causes this..

I used to have this problem too if you recall my threads.
I downgrade from 272 high cam to stock and everything back to normal.

Yours due to high cam, not high idling speed. When idling speed goes too high it will cut and drop then rise again like high cam tuning.....lol

 

[KenDiriwan]

Any update on this