Recently installed Catless downpipes and tuned. Just got a bunch of CELs after a pull.
All codes seem to be related… Is there a specific area I should be looking first. I have made sure everything is plugged in and solid.
My initial concern is the placement of the passenger...
I have a 2014 CTS Vsport premium that i bought just a few months ago. Recently I have been doing quarter mile runs and have noticed a trend.
When i start the car from cold and push hard after about two minutes of warming up, my boost gauge shows psi around 12-15 under full throttle...