Denso 234-9049 Air Fuel Ratio Sensor - High Performance Oxygen Sensor for Toyota, Lexus, Honda - Improve Engine Efficiency & Fuel Economy | Perfect for Highway Driving & City Commutes

So, My 2004 2.4L (4 cyl) camry had a p2238 code. My scanner tool stated 02 sensor Positive Current Circuit was low. Solution offered, to replace upstream sensor.The toyota sensor is a Toyota brand number 89467-33080, which is nearly $200. after hours or research and online videos, the Denso 234-9010 was said to be the oem replacement for the toyota.I replaced the sensor, the code went away, BUT the car now had hesitation and would not accelerate smoothly. after 15 miles of running a new code popped up. P0032 heater control circuit high on the this new sensor.Some comments on amazon and even some online video comments had issues as well and even suggested a different sensor : Denso 234-9049 Air Fuel Sensor.I Returned the Denso 234-9010 & bought this Denso 234-9049. WOW, what a difference. No codes, and car runs even better than the original that broke. Engine is smooth and strong. You cannot feel it or hear it when idle. Great sensor. Hope it lasts.