Can someone, tell me where the needle should sit at idle on the boost?? A picture would be great

what is your year and trim model?

it should be -10 (vacuum) at idle... and if you rev it in park the most it is going to get to is 0.. because the boost is bypassing

while driving at WOT (wide open throttle), you should be able to get to 6-9psi if you are stock

Some sit a few psi above -10 at idle. If you are coasting and it goes down to -10, it should be fine.

1993 SSEI Mine sits at -50 at idle!!!! This sounds bad, lol!!!! What could be the cause

You have a metric gauge that reads kPa instead? *shrugs*


**EDIT** Went and checked my boost gauge, which is metric from Canada. Sounds like yours is also from Canada, with a metric gauge that reads in kPa instead of psi.

The bottom of the negative side should read -70, in whch case -50 is perfectly normal. Mine hovers around that at idle as well.

Yeah he must be in Canada with the kPa gauge.

It is. I edited my message.

I am in canada, thanks guys, I thought I had a real problem, now to my second question! Is it okay if there is movement in the needle when you are at idle??????

Say + or - 10 kPa? That should be okay. Any more than that, and there could be an issue. If it is more than that, is the engine idle RPM also fluctuating?

No its not