ID1050s were installed. It states post cat, bank 2. lean. I logged and the long and short term fuel trims seem right on. -1 to -2. I read about the code. It states anything from low fuel pressure, clogged cats, leaky injectors, and on and on. In your expertise would cause such? Before we put in the injectors I got a terrible exhaust noise. It turned out on the passenger side a bolt came out on the JBA mid pipe which has high flow cats on. We put a new bolt on and it is very quiet. The car runs great. But something is causing this diagnostic to go on after a couple of key cycles.