Review on Enhance Performance with Denso 234-4513 Oxygen Sensor by Paul Rose

Constantly annoying Check Engine Light (Traction Control + Flashing Cruise Control) goes on and off when braking or accelerating in fifth gear. Given the diagnosis of poor catalytic converter performance, which I believe was judged by upstream and downstream oxygen sensors, I considered making this small investment before a more expensive repair, or even taking it to the shop. Now I can say that it's been a long time since the last engine check and I didn't even have to manually clear the code.