I installed the Intercepter today. Everything is hooked up right. Now the stock boost gauge doesn't read right. It only shows boost to about 10-11psi and vacum drops to aorund. 30 where before it would stay around 19 in vacum. The Intercepter reads everything right. Showing vacum at about 19-20 and boost up to about 16. Other notes I do have a 2.9 pulley. Any thoughts as to why the stock gauge doesn't work right now???
I have searched for some answers and can't find a dam thing.

 

Stock SS/SC Electrical gauge? or did you recently go with a mechanical?


take it in for warranty as something is fubar'd

 

Stock Boost gauge.

 

my boost gauge got stuck at 0psi and wouldnt do anything..dealer replaced the gauge hasnt happened since

 

That's fine. But it worked fine this morning and after the Intercepter is when it fd up this afternoon. So I think it is just something simple I am not seeing or haven't thougt to look at.

 

Check to make sure the electrical leads for the boost gauge didnt get bent/pulled out/crushed/cut..etc.

Theres not a whole lot you can do since its a electric gauge...if it was mechanical...id say you have a boost leak.

But your car should NEVER see -30 In Hg(Vac) while on...only when off. You should be right around -20