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

Installed this 02 upwind sensor on my 1998 Honda Civic LX. The old one with the air sensor socket has been removed, but you can use an adjustable wrench if you don't have one as it's $10-$15. In any case, disconnect and unscrew the old plug. Apply anti-seize to the new threads (tubes included) - then simply thread in by hand, tighten to OEM specs and connect to the appropriate wiring harness. Old and new sensor 02 installed.