I got a wrx 02 with 102,450 miles. I changed the timing belt + water pump.
About turbo, When i m acceraleting , the car is going fast pretty good until the RPM hit 5000 tr/min , i can felt the power is down but little bit ( like i'm on the cruise) but after around 5900 tr/min RPM , the power comes back.
In result , i lost power between 5000 rpm and 5900 rpm.
What problem could be?
no engine light ON.
Except i got a engine light ON, when i stay around 70 and i want to go fast , the engine light appear and it looks like the engine cut the power for 1 sec . the engine light disappears couple days later.
But before that, i didnt notice the lost power between 5000 and 5900 rpm.