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Re: 2000 Tacoma 2.4L P0420 - B1S1/B1S2 data reversed?
Posted to Technical Discussion Forum on 12/16/2002 5 Replies

Brad,

[...trimmed text...]

Sure? Look at the base of the sensor, if it starts with 89467- it's a A/F sensor, if it starts with 89465- it's an oxygen sensor. They look an awful lot alike.

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