P0299 error code, need help!
Turbocharger/supercharger 'A' underboost condition
Hey guys. Can anyone enlighten me as to what this actually means and what needs to be done about it.
I'm running a JB4 on map 5 with a DCI only on 93 octane. The car puts me into limp mode when I'm WOT in 3/4 gear and reaching 4500+ rpm.
Doesn't happen with half throttle or anything.
I appreciate your input ahead of time!
2008 335i - JB4 / BMS DCI / Premium Package / Sport Package / 6AT