possible vac leak locations

[RocCitySlayer]

I was wondering if there is a way to find out ALL possible vacuum leaks locations. Like where I shoud check, except the vented VC.

 

[J_HEATH]

Simple, build a boost leak tester. You can do a quick search to find out how to build one. Then all you'll need is a spray bottle of soapy water. Spray the soapy water on all your intercooler piping couplers, throttle body, and any other areas where you have vacuum or areas where air could escape. The soapy water will bubble where ever air is escaping from so you'll be able to tell where any leaks are.

 

[jpmxrider489]

Get a boost leak tester.
Boost Leak Testers - DSM Classifieds

A common place is the throttle body.

 

[RocCitySlayer]

I have done a BLT. No leaks. The engine Holds 35psi for as long as I want. But I have a really bad high idle problem that wont go away. Only thing. I can think would be a vac leak, Or maybe my TPS. I changed my ISC and that stopped the surge and now the car hold a steady 2300-2500rpms when ideling. The SAS, throttle speed and the BISS do nothing to change the problem.

The car was running for about 6 months, the tune started to get weird. Then the turbo blew, I changed the CHRA and tryed to reload my last working tune and have had this problem since

 

[Mitch41]

If you have no boost leaks, you should have no vacuum leaks.
This is of course my very uneducated opinion, so take it as you would like.

 

[srt4thatazz]

Hows your ignition timing? If its advanced to far you car will idle high.

 

[RocCitySlayer]

I've tried 2 mas's, and my throttle cable is the way it should be. I haven't check ignition timing at all because my laptop is not charging.