R50/53 O2 sensor replacement not hard
O2 sensor replacement not hard
IF you have the right tool(s). I used a 7/8" crow's foot wrench. Replaced pre-cat sensor in 15 minutes......after I cooled the pipes down with my leaf blower so I wouldn't leave skin on hot metal!
A crows foot
is a socket that looks like the end of an open ended wrench. It's used when you can't really get access for a socket, like things with wires that come out or stuff with limited access.

Matt

Matt
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