Here’s another one from me:
I installed new charge pipe and TIAL-Q BOV in
April.
Started to get 30FF code in
May. Ignored it while I worked on passing OBDII emissions readiness.
Passed emissions with my FlexFuel tune installed. Fast-forward to
June. Now it’s time to have fun ... but where’s my boost? Damn 30FF. I should be getting 22-24 psi but only getting 15-16 psi. Turbos spool quickly but clearly not reaching target and throwing 30FFs.
Read all the DIYs and started to first check my vacuum system and operation of the Waste gates using syringe to create vacuum, monitoring vacuum pressures supplied to the waste gates at idle and under WOT with the gauge routed up through the driver’s window, etc.
Removed the DCIs to pressure test the air intake, installed the PVC plugs, when all of a sudden I see these two holes:
LOL!
I forgot to plug the damn meth ports! I’ve been driving like this for two months.
Interestingly, this tells you that stock turbos will still boost 15 psi at 100% WGDC with two holes this large in the charge pipe.
DOH!
Added the plugs and all is well.