Hello my friends,
The past week I noticed the car not performing like it used to since I added the y pipe. When you press the gas at about half throttle the engine starts reving up and down and eventually after a second of lag accelerates through. That's one thing and the other is when I'm in manual mode I've noticed the car automatically shifting from 2nd to 3rd at moderate to light acceleration. The SES light has been on since I added the TP's and even after replacing one of the 02 sensors with a new one due to the old one being damaged upon installation. Anyone else having or had this issue? and do you think if I take it to a shop to clear the code will the shifting and acceleration normalize?
Other then that there is no hard shifting everything else is smooth, and I'm pretty sure that this code will come back
even with it being cleared??