Ok guys here is my story. I have an 03 evo 8. You name it and this car had it. The latest news is that the car's revolutions are going from 2000 to 4000 in gear like if i had in neutral. Same happens when i'm driving in the freeway at about 70 mph 3500 rpms, I try to speed up and it takes a while for the turbo to kick in, so it revs up like if it was in neutral then i drops back down and that is when the car's turbo kicks in. I don't know if its the turbo, the tranny or the clutch. I really wish it was just the turbo. Please help, it seems to be getting worse everyday.
A few tips that might help with the diagnostic:
Turbo wastegate code has been on for about 5 months and it's not letting the boost get past 15psi.
2nd gear has been grinding forever on high rpms.

Thanks a lot guys, i hope you can help me.

 

sounds like the clutch is starting to slip. good luck.

 

Thanks. Anybody else!!!

 

Lol, its the clutch. The same thing that's happening in my 05 Evo 8. Its fine till like 300 revs but if you try to gun it will go all the way up to like 7000 revs then the clutch grabs and shoots back down to like 4000 revs.. Another way to test if the clutch slips is if you drive at a certain speed while holding the brakes apply gas and if the revs go up with out the MPH going up then you know its the clutch slipping(It might take you a couple times to do it correctly). Time to start looking for a new clutch like me lol. Good Luck

 

yeah im having the same problem too...it gets really annoying so im looking for a new clutch as well

 

I would try swapping the wastgate before you do anything, or fix what the code is coming up for first then go from there. not saying its not the clutch but have to fix the wastgate sometime

 

Yup clutch time bud