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Discussion Starter · #1 ·
There's a chance that my oxygen sensor could be bad. If I confirm replacement needed, do I replace it with an ep3 sensor or a rsx type s sensor? Or are they the same and it doesn't matter?

Also additional question: do the years match up the same? For example is a 2005 civic si equivalent to the 2005 rsx, or is it a 2004, etc.

My ep3 has a k20A2 from the rsx type s and a rsx ecu
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