Enhance Performance with Denso 234-4513 Oxygen Sensor Review

Automotive sensors are crucial to the performance of a vehicle. Based on my observations, this particular sensor fails to work properly within a few months of installation. The pros of this product are none that I can think of. The cons are its high price, its low quality, and the stress it puts on my vehicle. A complete waste of money and time.

Perfect OEM replacement for my 2012 Forester 2.5 (non turbo). Have and upstream. This downstream is very easy to replace. I did both at the same time. Forester has 120K and kicked P0420. No codes in the last two weeks. If you're going upwind from a P0420, do yourself a favor and do it while you're there. Super easy to swap out. Upstream is a bit more complex in comparison.

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.