Hi to all this is my first thread.

I have a french EVO9 (around 20000 miles)

since two week, when a i am at 6000rpm, i have a very very big power cut

my mods are:

injen intake with intercooler pipe
turbo xs full exhaust
megan exhaust manifold and outlet
obx FMIC
HKS bov

no tuning yet on the ecu

have you got an idea of what it could be? the first time was some days after i mod the exhaust manifold if i remenber.

sorry for my poor language.

 

you don't have cat right? if you don't, you need a tune, that's boost cut by the way, not power cut. you car is overboosting, you need to get a tune right away. if you have tactrix cable you can have 4wheelslide do e-tuning for you.

 

+1 on boost cut. The values in the ECU need to be raised.

 

 

Must be cold where you're at to hit boost cut. The solenoid should regulate your boost first, then if not enough it will hit boost cut.

 

it's probably the combination of mods allowing it to breath better

 

Thanks for your so quick answer.

I was thinking about boost cut but because ne engine light still off.
I had the tactrix cable 2 days ago so let go to tune

I sure i will again need you soon

 

you're welcome, happy tuning!

 

I have raised up the boost cut load from 6000 to 7000 rpm at 245 but nothing seems to change, always this ***** cut

must i raise it more? or can it be my fuel/timing stock maps?

I read a lot this forum since 2 weeks but i still a noob...

what must i log for someone help me please.
thanks

 

you need to log load or loadcalc...245 is still pretty low and you're probably going over that.

 

So I raised it to 265 and it's fine. thanks

 

you're welcome