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Is there any chance that it's not the right o2 sensor since I keep reading that there is a total of 3 sensors. Just replaced mines with a denso a couple minutes ago and I still have a the light throwing code 21? This is on a 95 sc300. Could it be a bad sensor or the other sensor pre cat? Thanks.
Toyota and Lexus Join Mille Miglia For The First Time
Slideshow: A five-car lineup spanning more than five decades of Toyota performance and engineering will tackle one of Italy's most celebrated automotive routes.