Helo guys.
My car is an Impreza 2.0 Turbo from year 2000.
Mods are Viper airfilter kit
Revotec BOV
After i changed this the car seems to be hesitating in every gear uptil about 4000 rpm's. after that it goes ok again. Also in the 5th gear the car does not pull at all!!
I tried to reset the ecu yeasterday by letting the car stay over night without power, but it didn't help.
I must also mention that i had to change a small copper (or something like that) ring that was leading the oil that is cooling the turbo, because it was leaking. Then they refitted everything and it seems very slow in all gears. I thought it might could be some hose that was loose or anything, but I couldn't see anything that was loose.
What can be the cause of this? Any help would be apreciated!
Thanks, Thomas