The boost guage in my new-to-me TGP only ever reads at the first line in the + boost side. Occasionally going up a hill when it is working hard it will reach the second line but usually not. My though is that the x-over pipe is probably pretty badly cracked and that is what is causing the problem, not getting enough from the exhaust. Anyone have the same problem or know a good way to tell what may be the cause/fix?
Could be that's the cause, but almost everyone here has decided to give up on it and it's accuracy. Just buy an aftermarket one you'll get a true reading and it will look cooler. :)
Mine have done that when the cat converter is plugged... :drinking: