Hey, all. I've been scouring this forum to find out a way to replace my girl's 02 sensor per a P1037 code. It's a 2009 Rav4, 2.5L. I'm hoping to replace the O2 sensor myself, but haven't been able to locate the B1S2 sensor on the vehicle. Most of the videos and diagrams I've seen seem to show a 3.5L engine. Originally bought the Denso 234-4501, but that didn't fit. Please advise and thank you!