How to Replace an Oxygen Sensor — 2019-2025 Toyota RAV4

Replacing an oxygen sensor on your 2019-2025 Toyota RAV4 is a straightforward fix for issues like poor fuel economy, rough idling, or a check engine light (often codes P0136 or P0156). This DIY repair can save you big, costing $50-$100 for parts compared to $150-$300 at a shop. With the right tools and this guide, most DIYers can tackle this job confidently in under an hour. DIY Cost: $50-$100 | Shop Cost: $150-$300

You’re done. Clear any stored codes with your scanner and complete a normal drive cycle so the vehicle’s readiness monitors reset.

If the code returns, the root cause likely wasn’t the part you replaced — go back through the diagnostic steps before swapping anything else.