Tommy Pickles
Registered User
Hi guys, so I'm having ongoing boost issues with my b8. I keep getting an Underboost cel. I've found if I drive the car hard it will overcome this and work for a while, then will come back after driving normally for a day or two.
I first thought it was a dpf issue as it goes away after driving hard (forcing regeneration) but I tried doing a regen in VCDS and it completes instantly. Maybe someone could help me out with that?
Anyway I logged actual and specified charge pressure and air mass and this is the result I got (see pic). Its definitely underboosting. Can anyone tell me if this is normal or is there an issue? Sorry for quality of picture, will try get a screenshot uploaded tomorrow. Also is there anything else I should log/check over? Thanks.
I first thought it was a dpf issue as it goes away after driving hard (forcing regeneration) but I tried doing a regen in VCDS and it completes instantly. Maybe someone could help me out with that?
Anyway I logged actual and specified charge pressure and air mass and this is the result I got (see pic). Its definitely underboosting. Can anyone tell me if this is normal or is there an issue? Sorry for quality of picture, will try get a screenshot uploaded tomorrow. Also is there anything else I should log/check over? Thanks.