Diablosport Forums

I was parked on my parking lot . I wasn't driving.

you have to be driving

with the engine running

here it is

Just want to piggyback and say that my 15 CTS 2.0T gives engine 'rumbling'/shaking (hopefully not knocking? I don't know) under heavy acceleration using this tune. Car drives smooth until you get on it, especially when coming from 2nd/3rd gear, it just trembles. Very concerning. It has been present since I first flashed the tune. Not present on stock tune. How can I give you the data needed to resolve this? If you don't get the data you need from OP, do you want a log with your tune or the stock tune?

I dont know what is going on yet, but ill recommend you to wait. Today i got service message that says one of my cylinders got burn(no longer working) i got appointment in dealer for tomorrow morning. Lets see what gonna happen

tazo wrote:Just want to piggyback and say that my 15 CTS 2.0T gives engine 'rumbling'/shaking (hopefully not knocking? I don't know) under heavy acceleration using this tune. Car drives smooth until you get on it, especially when coming from 2nd/3rd gear, it just trembles. Very concerning. It has been present since I first flashed the tune. Not present on stock tune. How can I give you the data needed to resolve this? If you don't get the data you need from OP, do you want a log with your tune or the stock tune?

are you running good fuel?
post a log and the tunes, a new thread is a good idea.