Mini Catalytic Converter 45/90 Degree Exhaust Pipe O2 Sensor Spacer Adapter Catalyst Simulator Check Engine Light CEL Eliminator

Mini Catalytic Converter 90 Degree Exhaust Pipe O2 Sensor Spacer Adapter Extension Stainless Check Engine Light CEL Connector

Number: 036

Material: Iron plating nickel + ternary catalysis

Color: silver

Weight: 223g

▶Product Description:

When installing a high flow catalytic converter on your car or truck your check engine light (CEL) may illuminate due to an increase in airflow. An oxygen sensor spacer spaces out the rear oxygen sensor from the path of exhaust gases. This tricks the vehicle’s ECU into thinking that factory catalytic converter is still in place. There is NO GUARANTEE this will prevent a CEL on your vehicle because modern ECUs are very complex and rely on a variety of factors to determine if the catalytic converter is working properly.

▶Features:

The O2 CEL fixture actually incorporates the M18X1.5 miniature catalytic converter, which helps to get rid of the modified exhaust or the inspection engine light after removing the catalytic converter.

If the real catalytic converter is damaged, the CEL eliminator can reduce toxic gases;

If the O2 sensor is too sensitive, the CEL will still open after loading the canceller, and all problems on the CEL alarm will not be resolved. It can only solve one of the P0420 codes – Fault Catalytic Converter

• WITH CATALYTIC CONVERTER – O2 sensor bungs mini catalytic converter

• AVOID A CHECK ENGINE LIGHT – Catalytic converter built inside and will help get rid of that annoying check engine light.

• FITS ALL STANDARD OXYGEN SENSORS – Most modern vehicles are fitted with M18x1.5mm threaded oxygen sensors. This spacer features M18x1.5mm threads allows you to easily screw your oxygen sensor into the spacer and then the spacer into your exhaust.

• 90 DEGREE bend design is great for spacer clearance issue.

• CNC CUTTING – with steel material and plating Nickel

When a Straight Spacer Won’t Fit, Go With the Angle

Some exhaust layouts just don’t leave room for a straight O2 sensor spacer — a nearby subframe, heat shield, or crossmember gets in the way. This adapter solves that by routing the sensor off to the side instead of straight out, while still doing its main job: correcting a downstream O2 sensor reading that’s tripping your check engine light.

It threads directly onto your existing O2 sensor, then bolts back into the bung at either a 45° or 90° angle — whichever clears your specific setup. No welding, no cutting, no rewiring.

Choosing 45° vs. 90°

• 45° — best when you have some room to work with but a straight spacer still catches on nearby components.
• 90° — best for genuinely tight spots, where the sensor needs to sit almost sideways to clear the exhaust path.

If you’re not sure which one your car needs, a quick look under the vehicle at the O2 sensor bung will usually make it obvious. When in doubt, your mechanic can confirm in under a minute.

How It Helps With P0420/P0430

These codes typically show up when the ECU sees a catalyst efficiency reading it doesn’t like — common after a high-flow cat, deleted converter, or aging factory cat. This adapter’s mini catalyst element gives the downstream O2 sensor a signal closer to what a healthy catalytic converter would produce, which in most cases stops the code from tripping.

Specifications

Installation

1. Jack up the vehicle if needed and locate the O2 sensor bung to be replaced.
2. Remove the existing O2 sensor.
3. Thread the sensor into the spacer, then hand-tighten the assembly into the bung.
4. Finish tightening with a wrench — stop if you feel strong resistance.

Most installs take under 15 minutes with basic hand tools.

▶Notes:

1. There may be slight size deviations due to manual measurement, different measuring methods and tools.

2. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.

3.The picture is for reference only, the actual product shall prevail.

Fits: Universal M18 x 1.5mm O2 sensor thread — compatible with the majority of gas-powered vehicles.