I am having issues with my O2's. P0134 & P0154 No activity bank 1 sensor 1 & bank 2 sensor 1. I have been reading that when you have LT Headers these codes will pop up. I also read that switching the rear O2's to the front, solves the problem. Something about heating time is not enough with the fronts because of the free flow of the exhaust.
Anybody else have this issue with their swap?