Check engine light on with track off warning. I took it in to a local shop and he said he had to replace the bank 2 cat and quoted $2,800. Didn't really even talk much about the P1605 code. From the research I've done the P1605 code could be the issue causing the P0430 code and the cat might not even need to be replaced. I'm not having any performance issues at all. Does any one have input or dealt with the two codes simultaneously?