Hello everyone! I just purchased a used 2008 Enclave CXL for $2500 on craigslist. It is in decent shape for the price. It has about 184k miles and the engine was replaced about 5 years ago. Not sure how many miles are on the new engine, but both the front and rear seals need replacing so likely a lot. I think the tranny has the waveplate issue even though it has probably been repaired before, as it shudders when driving with light to moderate throttle. There is a code I cannot seem to track down the cause of... 1175, Fuel trim cylinder balance bank 2. I have several live data captures that show the two O2 sensors with a difference most of the time. I have replaced coilpacks, moved around injectors, replaced the MAP sensor, cleaned the MAF sensor, replaced the bank 2 O2 sensor, replaced all spark plugs, and checked for vacuum leaks. There is a small vacuum leak still where the tube from bank 1 valve cover goes to the intake plunem. I tried using epoxy to seal it, but it looks like it may still have a slight leak. Just not sure that would cause the difference between the banks. Any help would be greatly appriciated. I really want to get this car restored to a reasonably dependable state.