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It probably has nothing to do with the dual exhaust. O2 sensors just... fail. Use the original equipment sensor as a replacement. Usually you can only expect 50 to 60 k miles from the newer "heated" o2 sensors. BTW, if one bank goes bad, replace them both. The other one is getting ready to go and even if it keeps going, it's not giving you the performance you need. Just replace them. It will save you fuel and the vehicle will run better.

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โˆ™ 2006-03-25 07:05:48
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Q: Installed dual exhaust on 2000 Dodge Dakota but engine light comes on for the o2 sensor bank 1 How can you fix this Is there a better o2 sensor that works with dual exhaust?
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