My OBXT started randomly under boosting today. Barely hitting 11 P.S.I. in third gear. On full throttle 1st to 2nd gear runs it struggled to make 9.8 psi. So, basically, I'm running waste gate pressure right?
Nothing has changed, all it did was sit in the garage overnight. It made 14+ P.S.I. yesterday (COBB stage 1 OTS)... No weird noises, still drives and idles just fine, albeit with less power under full throttle. The AP shows my AF learning 1 to be 6.87 at idle, and swings to -0.78 under WOT. It also shows the WG duty cycle as it usually does, AKA the waste gate function should be getting modified by the EBCS. I've checked and all the routing to the EBCS is hooked up, properly. IAM is 1.0.
My question is, could I really spontaneously develop a boost leak that large and not hear it, or notice issues with drivability? Is there anything else I should check?
edit: I just reset the ECU, no change in performance.
Last edited by MTBwrench; 04-09-2015 at 06:57 PM..