Hi,

I have just fitted an HKS SSQ dump valve to my 94WRX and have a question.

does anybody know what the adjusting screw on the back of the DV does????


thanks

 

AFAIK, it adjusts pressure release - if you fiddle with it, you're quite likely to have idling problems!
So no touchy

 

I posed the same question a few months ago...I bought mine s/h so no destructions

I have a WRC 'chatter' if I lift off slightly and slowly...if I lift off quickly its all ok, I wondered if it was an adjustment to cure this.....

Oh well