stock FPR adjustment??

[Danny Bouliane]

As I was poking around in my engine bay today, I noticed that there is a vacum solenoid up near the brake M/C with a vacum line running to the fuel rail diaphragm... on the end of that solenoid is a knob that turns. I'm assuming this is a way of adjusting fuel pressure, but highly doubtful as it seems stock.
Has anyone else ever turned this knob with any luck gaining higher fuel pressure?

[John Hartman]

nope, not a knob, just a vent I believe.

If you pull it off you will see what I mean.

We all WISH they were adjustable.