Review on 🔍 Denso 234-9003 Air-Fuel Ratio Sensor by Mohammed Prude

So far so good, it's been over a month now and I haven't seen the dreaded P0420 code since I got this sensor along with a Denso downstream oxygen sensor and a Denso sensor installed. MAF sensor on my 2000 SR5 V6 4WD Manual Trans Toyota 4Runner with 155,000 miles. I didn't want to change the catalytic converter without trying it first. Two years ago my mechanic just replaced the bottom O2 sensor and it only seemed to work for about 3 weeks and after about two weeks he was still giving me an intermediate code P0420 so I have high hopes for this solution.