Can I drive car without o2 sensor

Asked by Colton Jan 18, 2021 at 02:09 AM about the 2008 Chevrolet Cobalt LS Coupe FWD

Question type: Maintenance & Repair

Have 2008 Chevy Cobalt 2.0 we're my upstream o2
sensor goes there is just straight pipe and no we're
to connect it to can I still drive car without it

2 Answers

158,195

Not a good idea. The upstream oxygen sensor is how the computer maintains the proper air to fuel mixture so the engine will run correctly. Without a signal from the upstream oxygen sensor the check engine light will be on constantly and the computer will go into default mode. You won't pass emissions inspection either. Hope that helps! Jim

18,745

However, to address the question of can you drive it, I would say yes. Your fuel mileage may suffer a little, but for the most part I don't think you'll even notice it apart from the engine light being on. There is no emissions testing where I live and I've driven cars with engine lights on (due to O2 sensors) for years at a timewith no problem.

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