View Single Post
Old 03-10-2020, 02:38 PM   #6
Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,572
Originally Posted by flmont View Post
It was really all over the map,...from -0.35 to - 0.50 What does that mean,..
Plus I did a smoke test and it only leaked from air box,..( filter in wrong,.. fixed ), I didnt see any more obvious smoke . ? Thanks Frank
That is indication of a very low vacuum level, either due to a bad AOS, a low vacuum signal from the intake system, or a vacuum leak somewhere in the sump system.

I would test the vacuum level coming from the intake to the AOS, it should be very high.
Anything really new is invented only in ones youth. Later, one becomes more experienced, more famous and more stupid. - Albert Einstein
JFP in PA is online now   Reply With Quote