Boost Gauge Won't go above Vacuum

[theKnifeArtist]

not quite sure what you're saying. the needle should move when you rev it at idle, because the vacuum changes. but nothing past vacuum or zero on the gauge(from what i learned just recently on this thread)
what kind of a boost gauge are you reading?

 

[lumier2x]

If your gauge is really reading -30 while the car is off and 0 at idle, something is very very wrong.

what is it supposed to be at? ima check the vac system or gauge hose could be pinched or something. i recently replaced all the hoses, radiator thermostat and clamps in the cooling system. oh and the char canister is disconnected.

 

[lumier2x]

ima check it tomorrow and ill let u know. could be the reason that if i rev too high while parked engine shuts off but when i drive its ok.

 

[OneJoeZee]

what is it supposed to be at? ima check the vac system or gauge hose could be pinched or something. i recently replaced all the hoses, radiator thermostat and clamps in the cooling system. oh and the char canister is disconnected.

Maybe your post is just worded backwards. I'm not even sure how you could have -30 vacuum while the car is off and 0 at idle. I think what you meant is that you're reading 0 when the car is off and -30 when the car is at idle.

 

[jdub]

Read this:

http://www.cygnusx1.net/supra/TechTips/vacuum_gauge_readings.aspx