Hey, I’m sorry to bother I have a 2010 g37x awd I replaced the throttle bodies, coil packs, brand new exhaust, brand new maf sensors, brand new cam, sensor new injectors, new spark plugs, new fuel pump, new ecu none related issue, and my car is reading banks 1 and 2 rich I put an aftermarket motor dyne exhaust and some cats none hallowed. Could this cause them to read lean?