Ever since getting my car back from the dealer for a lot of work (new turbos, water pump, oil filter housing gasket, injectors) I have noticed a surging sensation at light part throttle. It is noticeable as a driver but I doubt a passenger would notice it unless I asked them to pay attention. You can see a very slight change in RPM on the tach but nothing I think would show up on video.
The sensation is only noticeable at about 10% throttle and while maintaing a fairly constant rpm between 1k-2k.
I searched around and some people are suggesting this is a vacuum leak. Would that explain the surging sensation?
The car is 100% stock right now. I looked at the vacuum lines behind the oil filter housing and they don't look great (frayed weave) but no obvious tears in the tubing. I guess it is conceivable one of them was damaged during the warranty repair (specifically the oil filter housing gasket replacement) or during the process of putting the car back to stock.
Is the next step replacing all those vacuum lines? Would the Cobb AP be able to log this issue?
Thanks for the help!
The sensation is only noticeable at about 10% throttle and while maintaing a fairly constant rpm between 1k-2k.
I searched around and some people are suggesting this is a vacuum leak. Would that explain the surging sensation?
The car is 100% stock right now. I looked at the vacuum lines behind the oil filter housing and they don't look great (frayed weave) but no obvious tears in the tubing. I guess it is conceivable one of them was damaged during the warranty repair (specifically the oil filter housing gasket replacement) or during the process of putting the car back to stock.
Is the next step replacing all those vacuum lines? Would the Cobb AP be able to log this issue?
Thanks for the help!