Running stage 1 93 octane Cobb map. Bone stock. Should this be happening? Anyone else? I've only noticed it tonight, as the temp has dropped a bit. Severe buck in high rpm. What can I do about this? I thought the AP would delete the fuel cut. Any help is greatly appreciated. Thank you.

 

are you sure its fuel cut? the car might be pulling timing. did you tune your self? how cold is it were your at? what mods besides cobb

 

So I'm out for a drive this morning and the bucking appears again while I'm monitoring boost level on th AP. this time the SES light came on and the code was waste gate actuator failure. Boost was only hitting 27 PSI, but I'm assuming the solenoid duty cycle was beyond the limit? Is this a fair assumption? I saw some low waste gate duty cycle maps somewhere available. Would these solve my issue without killing power? My car is stock except for the tune. Outside temp per the readout was 36F. Last night was probably in the 40s. Is the bucking fuel cut or just the solenoid taking a dump and instantly dropping to waste gate boost? Sure felt like fuel cut.
Off topic: I got a possible Icy roads warning. Is it temp driven or from abs picking up slip?

 

Could be traction control cutting power, Advans become very slippery below 45F.

 

Probably not the case, but did you check this;
https://www.evolutionm.net/forums/ev...s-do-asap.html

 

That sure sounds like a fuel cut to me. I don't think it's the traction control or the hose .

Take a look at the below link(post 993):
https://www.evolutionm.net/forums/co...-evo-x-67.html

 

Definitely not traction control. I get no warnings on the display when it happens. I'm gonna try to find the low wgdc map and see what it does for me.

 

So I finally had some time to run a log or two and analyze what was happening. I was definitely hitting fuel cut. I increased the values of the load limit and load delay tables using ATR and hopefully that will solve this issue. Once the wife gets home to watch the kids I'll go and log a few runs. I was wondering if there was anything else I could do or if I missed something? Thanks.

 

make sure you hold traction control for 3 seconds to shut it all the way off my 2011 does the same thing when its cold shutting tac on seems to do i think its the tires trying to break free

 

How are you getting 27psi on the stage 1 im only hitting 24psi..?

 

Every car is different even if they roll off the assembly line after one another. Some people have trouble hitting target boost while others fight over boost conditions. It's just luck of the draw. I didn't get a chance to thoroughly test but it seems my issue has been solved. I did spike 28psi today so I'm wondering if the changes I made effect max psi as well? Is 28 psi relatively safe ? Load reaches into the 280s. Is this ok?

 

I also peak at 27 psi on stage 1 93 octane.