i have a 2006 evo mr with a couple bolt on modifications such as
megan turbo back exhaust
down pipe
o2 housing
upper and lower intercooler piping
injen intake
greddy type RS blow off

so now my problem is,
when i full throttle it, it pulls very hard until i hit 6,000 or just below 6,000RPM
and then it just feels like i hit the redline but i still have another 1,000 rpms to go...
it didnt do this when the car was stock. it just recently started happening when i put all the modifications on.
im thinking its a fuel cut out but thats only a guess.

also it doesnt do that when i just ease into the high RPMS... i can ease it into Redline and not have any problems. its only when i full throttle it.

so what my question is, what exactly is going on and how would i go about fixing the problem?


thanks for the help.

 

That is fuel cut. The mods you have added have increased airflow and load. Fuel cut is based off load. Stock fuel cut is set at 240 load at 6,000 rpm. I would imagine the car is seeing over that now.

The injen intake also messes with the MAF readings so you need to be tuned for it.