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O2 & lean codes same problem?

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I have a couple of codes and wonder if they are related or a separate problem. P0131 bank 1 sensor 1, P1153 O2 range. Probabluy same issue. But I also have P0171 Bank 1 lean. Is this the same issue or do I also have a vacuum leak?


It manifested with check engine light and flashing cruise light. Cruise control does not work. It also idles rough and my mileage is crap. Maybe that helps. I got a Bosch O2 sensor. Am I going to have to buy a 22mm (pr 7/8"?) crows foot or can I do it with a wrench?

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