Originally Posted by hnbracing
it may not be mechanical the boosbypass solenoid could be bad(it is powered closed and depowered open and that oring dose go bad) you dont want the max spring pressure on the bypass actuator because the boost pressure may not be enough to open the actuator if it gets commanded to open by the pcm for excessive iat2 that is why it has an adjustemnt screw to set the spring pressure and zzp does make tuning mistakes
That's still mechanical if its not in the tune
And the valve is opened by boost only when in boost. Other times its
Vac operated. It wold never open at idle or cruise if it was solely boost powered.
But yes, if the spring is too high and you don't have enough vac (bad hose, leak) it could remain closed. I have had no issues with mine though.
Originally Posted by brian
Hmm.. I suppose I could test the solenoid. How dangerous is it to leave to bypass mod in place during my daily commute?
It's fine just don't go banging the limiter. Gas mileage may suffer a little.