Replaced Upstream o2 sensor gas mileage not great
04-06-2013, 09:20 AM
#1
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Replaced Upstream o2 sensor gas mileage not great
I replaced my upstream o2 sensor and its looks like I have lost about 5 miles per gallon on my gas mileage. I was thinking that since I haven't replaced the downstream sensor maybe that is the reason. The downstream sensor isn't bad yet but maybe mixing a new one with an old might be the issue. Please help…
04-06-2013, 12:12 PM
#2
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Did you replace it with the OEM o2 sensor brand (Denso). If I remember right any other brand, especially Bosch do not play well in our cars, this is from personal experience.
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victus1 (04-06-2013)
04-06-2013, 04:18 PM
#4
You never know what the effect will be. That's why it's best to always stick with OEM for critical components.
I hope you reset the ecm after the new O2 sensor install.
I hope you reset the ecm after the new O2 sensor install.
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