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https://www.reddit.com/r/Cartalk/comments/q1djma/can_anyone_help_me_figure_this_out/hfehpih/?context=3
r/Cartalk • u/Technical-Purpose-12 • Oct 04 '21
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I’ve got a car with a bad downstream 02 sensor that is doing something similar with the same kind of smell. The car has 275k on it. From what I read, if the 02 sensor is bad the car will run really rich.
2 u/greenskeeper-carl Oct 04 '21 Correct. Every time that’s happened on one of my vehicles, I could smell it on cold starts.
2
Correct. Every time that’s happened on one of my vehicles, I could smell it on cold starts.
4
u/outlier74 Oct 04 '21
I’ve got a car with a bad downstream 02 sensor that is doing something similar with the same kind of smell. The car has 275k on it. From what I read, if the 02 sensor is bad the car will run really rich.