Boost Guage posted by 300zx_tt_z32 on May 06, 2008 at 01:12 AM
Message
the same mods as you, but I have added boost jets. My best advice is to buy or make a boost leak tester and exam the car under pressure. For now you should be able to pop off the gauge and add teflon to the adapter like BlackTT91 mentioned. Also you could pull the gauge out at idle while it is still connected and run your finger across the line to feel / hear the leak if it is indeed the source of the problem.