View Full Version : noise/ boost lack

09-15-2012, 01:20 AM
couple days ago i did a donut since then my silvia is making a kinda whistling noise as boost builds up and is not boosting as hard as it was b4 any ideas? ive been told this could be the wastgate accuaiter ? i have a ca18det

09-15-2012, 01:34 AM
Check your couplers bro. Could be something as simple as a leaky coupler or a torn vacuum line.

09-15-2012, 01:40 AM
exhaust leak by turbo somewhere?

09-15-2012, 01:48 AM
Sounds like a boost leak. Do a boost leak test. DIY boost leak test/tester (http://www.youtube.com/watch?v=atretf9u-Mc)

09-15-2012, 02:12 AM
ill have a look at all sugestions id like ta get it sorted asap