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What is p0037 for?
That P0037 is for the downstream sensor on bank 1. This is the rear sensor on the passenger side front cat converter. It is the one with the black connector. There are special O2 sensor sockets and wrenches which make it easier to remove but all you need is a 7/8" or 22mm wrench.
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2008 Lexus Rx...
on Aug 14, 2012
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