I have a 1998 ford mustang gt. for starters I currently have BBK Shorty Headers. I just installed a BBK Catted X-pipe. Im pulling a code for bank 2 system to lean “forget the actual code”. any suggestions on what it could be? all of my o2 sensors are all the way in and no wire are tangled. when at a stop light with the brake pedal depressed the car likes to go from 1k RPM to about 200 RPM like the car is about to die and then itll just back up to 1k and the car will move forward a bit. also...

System to lean bank 2 after x pipe install