P0156 problem
I keep getting the code P0156 02 sensor bank 2 circuit malfunction. Its been a problem ever since I installed my long tube headers. It was a kit with the y-pipe and cats. I bought the system used. Ive replaced the sensor twice and it works for a few months and then acts up again. Ive alaready replaced the bank one cat for a similar code. Im not sure what to do. I was thinking of getting a tune and have the rear o2 sensors programmed out or getting a o2 sim if I can find one.
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