23-07-2013, 08:34 PM
(23-07-2013, 05:40 PM)underground375 Wrote: Turns out it was a boost leak, a pretty bad one, it was on the inlet, which was after the boost gauge hence why the gauge was still reading 12psi. All sorted now!
Not necessarily, the gauge measures pressure, not flow. The turbo could just be spooling enough to still make 12psi even with the leak, just working chronically hard to make the same amount of boost.
I had a hole in a FMIC pipe I could fit my finger in and it screeched like hell, leak was well before the takeoff for the boost gauge and still pinned the wastegate at 22psi even with a chronic leak. Just ran like a bag of spanners and made a horrible howling noise.
![[Image: signature_zps1a02ba79.jpg]](http://s1128.photobucket.com/user/martypellowe/media/signature_zps1a02ba79.jpg.html)