Review on 🚀 Enhanced Performance Denso 234-4659 Oxygen Sensor for Optimal Engine Efficiency by Wes Thao

When I saw P420 (insufficient catalytic flow) code light on my 97 GS 1.8 Integra, (@ 135,000 miles) the dealer advised me to replace the 1st rear oxygen sensor. When I pulled the wire out of the bottom panel and found a 7/8" wrench it came loose easily. After installation the engine light was still on and showing another code or front sensor 02. I replaced the front sensor 02 and the problem was solved. These Denso parts are the closest thing to a dealer type, for less money and so far so good! The car has been tested annually in upstate New York so I know it is working properly. THANK YOU SO MUCH!