Once you have determined which sensor (s) need to be replaced (see section 5.0 Troubleshooting and ODBII Codes), the following is a general guide to replacing a direct fit oxygen sensor.

Tom Kise talks about oxygen sensors and where to place an 02 sensor bung in your exhaust and how to properly install them. o2 sensor placement is critical for getting your engine to...

Keep your engine breathing easy with a new oxygen sensor. Our step-by-step guide shows you everything you need to do the job right!.

Dec 17, 2025 · Oxygen sensors are necessary for vehicles to combine the proper ratio of gas and oxygen into fuel. Depending on the make and model, your vehicle could have 2 to 4 of them to …

Nov 4, 2023 · Whether getting a check engine light for a bad sensor or performing preventative maintenance, this guide will walk you through the entire O2 sensor replacement process, from …

Oct 20, 2020 · Improper placement, poor welds, and other installation mistakes can cause false readings from your sensor. In this video, our friends at Holley Performance show you some pitfalls to avoid …

Nov 27, 2018 · In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. He also explains how to properly install them. O2 sensor placement is …

Use an oxygen sensor socket to remove the old sensor. 3. Remove protector cap on new sensor just prior to installation. 4. If not already coated, apply (enclosed) anti-seize to oxygen sensor threads. 5. …

Jan 11, 2026 · In my experience, many O2 sensors fail gradually—drivers notice the check engine light long after efficiency has already suffered. This guide explains how U.S. drivers can diagnose O2 …

Dec 17, 2025 · Master the full O2 sensor replacement process, from confirming diagnostic codes to restoring vehicle performance and fuel efficiency.