Review on 🔌 Denso 234-9021 Upstream Heated Oxygen Sensor: Advanced 4-Wire Plug with 14.17” Harness by Eric Ramen

It has been 100 miles since installation and the Check Engine light has not come on. I originally had a CEL code of P1135 and also showed up as P1130 prior to installation. After much research and confusion, I bought this part with the thought (hope) that it was the right one. Also part of the confusion was which sensor was actually faulty as I understand the Camry V6 has 4 of these. I chose source code P1135 which I read referred to the sensor on the back of the engine next to the firewall related Firstly, this product is an air/fuel sensor (see ditto). Secondly, it's Denso model number 234-9021 which appears to match the 'non-genuine' Toyota Denso part 89467-33030. Same part, same manufacturer, half price. (see also image) Thirdly, this install would not have been possible or at least MUCH more difficult if I hadn't bought the "Powerbuilt 648691 Oxygen Sensor Bias Puller" which took about 45 minutes next to the firewall and it was a bear I could only able to reach the sensor with one hand and even then i was rubbing at other engine components i recommend gloves and long sleeves - i ended up with a nasty scratch time was spent disabling this thing until i got the hang of it and looked at how the Sensor was wired to the front of the engine Yes! Then it was also difficult to get the torque needed to remove it, especially in an awkward situation with the ru-schuch tern. I recommend a ratchet while you can get there. Once removed, the threads of the new thread can be quickly smeared on, the threads aligned, hand tightened, ratcheted and connected. . Much luck!