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I was wondering if an HX 02 sensor is a wide-band. I was told that it was but I want to know for sure but I don't believe that it is but I may be wrong.
I believe it is. Here's a good way to check: call a Honda dealer, ask for the price on a 199X Honda Civic HX O2 sensor. If they tell you it's over $300, then yes, it is a wideband.