Review on YCT Oxygen Downstream 234 4189 2000 2004 by Van Masterson

As a long time hot rod enthusiast I know cars and car repairs well so I was wary of buying a fake Chinese copy OEM O2 sensor. I don't usually do that. But I bought this for a 2002 Tacoma because I don't always follow my own advice. Upon inspection the O2 sensor looked better than I thought it would and the interface to the exhaust looked fine. However, the 4-pin connector was wrong. It will definitely not fit a 4-pin socket. How did I get it to work? I cut off the wrong end of the connector from this new O2 sensor and soldered the old OEM O2 sensor to the correct connector. If that sounds like PITA, it is, especially when you expect the OEM to fit and work. As for the function of the O2 sensor itself? I don't know - the truck hasn't done enough miles to tell. Unless you're willing to take a chance on a plug, I'd say no.