YCT Oxygen Downstream 234 4189 2000 2004 Review

When I tried this sensor, I immediately noticed improved performance in my vehicle .The installation was easy and the results were impressive..

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…