Car Oxygen O2 Sensor Adapter CEL Fix Check Engine Light Eliminator M18*1.5
Car Oxygen O2 Sensor Adapter CEL Fix Check Engine Light Eliminator M18*1.5
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O2 Sensor Adapter with Mini Catalytic Converter: Eliminate the Check Engine Light (CEL)
Are you tired of having your driving focus ruined by that distracting check engine light (CEL)? Our Car Oxygen O2 Sensor Adapter provides the ideal solution for stress-free driving. This essential adapter is designed to correct the CEL that commonly appears after installing an aftermarket exhaust system or removing the factory catalytic converter. Choose this adapter for worry-free, performance-focused driving.
Reliable Operation with a Built-in Mini Catalytic Converter
Unlike unreliable extensions or spacers, this adapter features a real, functioning miniature catalytic converter. This design ensures reliable performance and accurate readings, giving you the confidence that the adapter is successfully masking the secondary O2 sensor signal. The built-in converter effectively keeps the check engine light off.
Durable SS304 Construction for Maximum Lifespan
Crafted from premium SS304 stainless steel and equipped with a stainless steel filter mesh, our adapter is highly resistant to both corrosion and rust. This guarantees exceptional strength and long-term durability, allowing you to benefit from its reliable performance for years to come. Drive with confidence, knowing your adapter is built to withstand rigorous use.
Easy M18*1.5 Installation for a Quick Fix
Featuring standard M18*1.5 threading, our adapter is engineered for a secure and straightforward installation. Simply screw it into the position of your secondary oxygen sensor—no complicated procedures or lengthy installation times are required. Enjoy a stress-free and immediate improvement in your car’s dashboard warning status.

Important: For Off-Road Use Only
Please note that this oxygen sensor adapter is strictly intended for off-road use. It is not designed for street use on public roads or highways. Before installation, it is the user's responsibility to ensure compliance with all applicable local and regional laws and regulations.
Preventing Common O2 Sensor Error Codes
Removing the factory catalytic converter often exposes the post-O2 sensor to higher temperatures and a greater flow of unburned fuel. This frequently triggers error codes such as P0420 (Catalyst System Efficiency Below Threshold Bank 1) and P0430 (Bank 2), activating the CEL, SES, or DTC warnings. Our adapter is specifically designed to address these signal variances, successfully fooling the ECU and turning off the check engine light permanently.
Product Details
- Material Composition: SS304 Stainless Steel and Stainless Steel Filter Mesh
- Thread Specification: M18*1.5
- Weight: 40 g

