Originally Posted by sA x sKy
How did you find out about this problem?? The bov thing..
I get a code 2c90 diverter valve stuck open and the car feels laggy with a very audible whistle noise. When I clear the code via jb4 it instantly goes back to normal until I go wot and change gears.
Its weird it stays for a month or so then doesn't happen for a month I do not know what to think.