Need some expert advice. I use to hit 10 psi on the setup in signature. Now hitting 7-8psi sometimes drops to 5psi.
Heres what i have tested so far, can you guys please tell me what time missing.
-I don't notice much of a performance drop
-I completely reinstalled with new piping and connectors for the whole turbo plumbing after the problem began.
-I increaed the boost on the mbc , no difference
- i used a hand pump to test the line going to the boost gauge, no leak.

What are other causes of boost leak? wastegate? BOV? thanks for your time.

 

Hook up a boost leak detector instead of asking people on honda-tech and waiting for an answer.

Couplers, map, tps, iacv , intake air sensor, throttle plate ( where the throttle cable attached and the piece that goes into the throttle body ) , intake gasket, fuel injector seals, vacuum lines, blow off valve...

 

Already planned on doing the boost leak detector maybe i should rephrase what are areas to inspect beside the areas i listed. Sounds like you covered them, thanks!

 

No problem, get a bottle of soapy water also, that helps. Also forgot to add the throttle body gasket.