JoeP MBC won't control boost anymore?

[Alpine TSi]

All your vacuum lines still hooked up? If one got knocked loose or is leaking somewhere you will not have the correct boost that the Joe P. is set for.

[howslowcanyougo]

I just went and checked all the Vac lines they looked ok? Then I took a hammer and tapped on the JoeP MBC, and turned it all the way in and back out, wrapped it again, and tested it this time as having only about 10 lbs!

So now it looks like it's working, like a ball got stuck and loosened when I wrapped it with hammer or?

This maybe a stupid question, but should I squirt some WD40 down in the MBC , or just replace it, as I sure don't want to blow a HG or worse, and if this happens again, I might not be so lucky?


Many Thanks Again.....!


Howie