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GM Single wire O2 sensors, Why so many??
Posted to Technical Discussion Forum on 2/8/2000 7 Replies

Hope this is the right Forum to post to!

I'm looking to see if someone can tell me what the differences are in the O2 sensors (single wire), that GM uses.

Yesterday I had a 95 Sunfire (2.2L). It had an O2 sensor in it that appeared to be an AFS-20. This is... Login to read more.

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