Hello all. My LS build is complete, and I have been enjoying the truck. I was having a few issues with fuel trim on bank 1 reading 25% on Long term, and bank 2 was all good. I went through the process of elimination starting with intake and exhaust leaks, nothing found, then I swapped o2 sensors to see if it will move to the other bank, nothing, then I swapped coils between bank, and found a bad coil.
The engine was misfiring, but wasn't getting any misfire codes on my obd2. Is there a way to make these LS swap show Misfire codes on the scanner? What do I need to do?