just a quick question for anyone who has imput. My cars been having some type of turbo cut off or boost cut off. From what ive searched the stcok ecu has a cut out point, i bought my car as is so i dont personally know if thats been changed its more in 3rd gear and up, at WOT around 4-4.5k rpms the turbo just shuts off my boost gauge beeps as if it was reaching my peak point but the needle shoots to the bottom of the guage. i can hear the turbo spool as i get on it alittle and then itll cut off. i can still hear my engine going fine its just like the car was a non-turbo car. i dont think its a fuel cut, in no way does the car jerk when it happens, its more like i just go in to civic mode or something. if i release the gas pedal then press it agian my boost just starts to build right back up somtimes it will hold and i can ride the hole gear out with boost somtimes it will just cut off agian around 4k. its kind of a random accurance but i would say it happens more then it dosent happen i had a boost leak on the lower seal of my first injector i pulled the fuel rail and replaced all of them so no more leak i might have a small one somewhere else hopfully not ,checking tomorow. my car throws p0300 to if that could havesomthing to do with the cut off. if someone can just tell me what is happening i can do more searches throughout the site, im just stumped on why its cutting out like it is. thanks alot the mods and specs to the car are below vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv vvvvvvvvvvvvvvv

03 evo 8 26kmiles22psi--93oct----mobile1
3' exhaust
downpipe/02 houseing
arc box/ 3'intake pipe
spoolinup COP
hks 264/264
greddy fmic/ licp
hks uicp/ hks bov recirculated

stock turbo and intake mani and exhaust mani and engine internals

 

Not sure if its your problem but once it cuts off once the ecu will remember and continue, just gotta unplug the negative terminal on your battery for 30 seconds or so to let it reset.

 

That doesn't do anything but reset your odometer and radio stations


Do a boost leak test and don't continue to floor your car with it running that way. You might damage something

 

Sounds like boost cut. If you have an MBC you can lower the boost until it stops happening. If you have a tactrix cable and a laptop you can pull the current map off the car and adjust the load required to activate boost cut.

 

Gap your plugs to ..20- .21. see if that changes anything.

The air got very dense here lately. if you run at .25 you will get spark blow out do to the extra PSI.

 

lol trust me man i back off asap i only did the gear without boost once to try and figure out what the hell was going on. im such a baby when somthings going wrong with my car. im checking for leaks once i get to work, since i can pull it in the bay and get out of the cold

 

The misfire code is probably due to your cams. Mine Does that when it's cold out.

 

Just following the directions from hallman, guess they could be wrong? :l
Says even if you turn the boost down without reset to the ecu the
fuel cut will still kick in cause it remembers.

 

Boost cut is activated by a load vs rpm threshold in the map. The ecu doesn't "remember" that it previously hit boost cut AFAIK. If it goes over, it cuts boost until you lift off if I'm not mistaken.