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Re: code 21 O2 sensor
Posted to Technical Discussion Forum on 12/17/2007 2 Replies

Jeff,

I gotta ask, did you do any real testing? It sounds like you had a code and threw 2 oxygen sensors in, checked scan data and sent it on its way. Did you check scan data before you replaced the oxygen sensors?

You said the oxygen sensors were switchin... Login to read more.

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