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RSpeed Miata O2 Oxygen Sensor Rear 1.8L 1994 - 2000 Miata

RSpeed: Miata MX-5 1990 - 2000 REAR o2 Sensor
R Speed Best Value in O2 Sensors

R Speed Miata MX-5 02 Rear o2 Sensor

List Price: $222.90
Our Price: $90.00
You save $132.90!

Availability:: Currently Unavailable
Product Code: NAB-7202

Oxygen Sensor*:

Product Description Technical Specs & Installation Shipping Details & Extended Information
NOTE: 2001-2005 Rear 02 Sensor Currently NOT Available

Replacement Rear Oxygen Sensor Bank 2 for 1994 - 2005 Mazda MX-5 Miatas After Converter.

The oxygen sensor is a critical component of the automotive fuel injection system; it constantly measures the oxygen content in the exhaust gas and helps the ECU (Vehicle Computer) ensure optimal engine operation at an industry standard of 14.7.1. Most importantly, too much oxygen in air/fuel ratio means the engine is running lean which is less than optimal causing reduced engine performance and damaging detonation. Oppositely, if there is too little oxygen in the ratio it means the engine is running rich and wasting excessive fuel and creating excess emission. Both conditions may shorten the lifespan of a vehicle's engine and catalytic converter.

Rspeed Oxygen Sensors are the result of rigorous testing on and off track to produce Oxygen Sensors that operate consistently at OE specifications; as such they increase vehicle's engine performance, lower vehicle emissions, and improve vehicle's fuel economy. To ensure longer sensor lifecycles and vehicle safety, every R Speed sensors is produced with premium materials that protect the sensor against the harsh environment inside of the exhaust pipe, which cause premature sensor failure in common in mass produced units. In addition, all R Speed 02s are tested against the sensor's function parameters to guarantee the highest quality and stability for even the most discerning Miata owners.

Unlike troublesome universal units, ours does not require any cutting or splicing as all our Miata o2 Sensors feature original style plug and play harnesses. Additionally, we build all RSpeed o2 Sensors in the Rounded hole, frontal tube, OS5 Japanese type just like the OEM units that where factory equipped with you Mazda Miata. Unlike other replacement o2 sensors for the Miata, ours features an insulating body grommet like the original factory unit to keep out noise and debris.

Features an insulating body grommet like the original factory unit. Bank 2 after the Catalytic Converter located on the exhaust system mid pipe.

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 1 Write A Review

  0 of 0 people found the following review helpful:
5 of 5 Works great November 6, 2023
Reviewer: Jake Stumph from Pasadena, CA United States  
Had a lingering P0420 code on a used Miata I bought, even after the seller replaced the catalytic converter. Swapped in both O2s from RSpeed and the code is gone. Plug and play fitment -- especially on the rear sensor -- is very much worth the $$$

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