Review on 🚀 Ultimate Performance Ensured: Denso 234-4099 Oxygen Sensor - A Must-Have for Superior Engine Efficiency! by Michael Jennings

Installed this fresh out of the box and it's no good. My broadband sensor told me he's insanely rich. It stabilizes at 14:1 for a second (where it should be), then hits an insanely whopping mark and does it over and over again. I checked the sensor output and it was a very low output and signal frequency. I've attached a chart showing this sensor (flat line, dots indicate each time it sends feedback. Note that once every 5 seconds) and then another new sensor (much more active signals) that I had to purchase to replace him. Is the batch either of poor quality or defective? I suspect a defective sensor. He also didn't release the code. At least in the short time I've installed and diagnosed it. I wouldn't know anything without my broadband and scanner. The last graph shows the fuel trim getting progressively richer until it returns to around 14:1 when the signal is received from the sensor.