Hi,
I know search is my friend. But i really need your help to figure this problem out. Im getting p30ff code very often lately.
This situation happens only on WOT and in lower rpms. When i floor it sometimes the car pulls just like fine, but sometimes it drops boost and throws p30ff code afterwards. Blamed it on the map at first which was cobb stage 2 fmic and went back to stage 0, thought my meth setup wasnt helping the situation so turned it off as well. Unfortunately this problem still was there but not as noticable as before. It drops boost sometimes mostly when you floor it in higher gears in D mode (car is a dct) and after a downshift, boost drops to 4-5 psi.
Could it really be a leak? On part throttle crusing even when it gets 17 psi of boost there is absolutely no sign of boost drop but if you push the pedal further there might be a chance of dropping boost immediately. The nature of having a leak on wot and not getting it on part throttle doesnt make sense to me.
Do i have a bad fuel pump? Or should i concern about seleniod valve/actuator/wastegate?
Thanks in advance
Btw The car is a 2011 z4 35i dct
Has intake
Fmic
CP
DVs
OCC
Aquamist with two nozzles
Cobb ots maps
I know search is my friend. But i really need your help to figure this problem out. Im getting p30ff code very often lately.
This situation happens only on WOT and in lower rpms. When i floor it sometimes the car pulls just like fine, but sometimes it drops boost and throws p30ff code afterwards. Blamed it on the map at first which was cobb stage 2 fmic and went back to stage 0, thought my meth setup wasnt helping the situation so turned it off as well. Unfortunately this problem still was there but not as noticable as before. It drops boost sometimes mostly when you floor it in higher gears in D mode (car is a dct) and after a downshift, boost drops to 4-5 psi.
Could it really be a leak? On part throttle crusing even when it gets 17 psi of boost there is absolutely no sign of boost drop but if you push the pedal further there might be a chance of dropping boost immediately. The nature of having a leak on wot and not getting it on part throttle doesnt make sense to me.
Do i have a bad fuel pump? Or should i concern about seleniod valve/actuator/wastegate?
Thanks in advance
Btw The car is a 2011 z4 35i dct
Has intake
Fmic
CP
DVs
OCC
Aquamist with two nozzles
Cobb ots maps