AutoMeter Sport-Comp II 52mm Lean-Rich Digital Air/Fuel Ratio Narrowband Gauge

2010–2025 Vehicles with Factory Narrowband O2 Sensors

Part #: 3675

Overview

The AutoMeter Sport-Comp II 52mm Lean-Rich Digital Air/Fuel Ratio Gauge is an essential tool for enthusiasts who want to monitor their vehicle's air-fuel mixture in real-time. Designed for performance drivers and those seeking to optimize engine tuning, this gauge provides accurate, immediate feedback on whether your engine is running lean or rich. Proper air-fuel ratio management is crucial for engine longevity, fuel efficiency, and optimal power output, especially during spirited driving or heavy loads.

Whether you're tuning your vehicle for better performance, monitoring for safety during aggressive driving, or simply maintaining engine health, this gauge offers a reliable and straightforward way to keep an eye on your air-fuel conditions. Its compatibility with factory narrowband O2 sensors makes installation straightforward on many vehicles, allowing you to upgrade your dashboard with minimal hassle.

Key Features

The AutoMeter Sport-Comp II Narrowband Gauge is packed with features that make it a must-have for performance-minded drivers:

• Compatible with factory narrowband O2 sensors (0-1V), allowing seamless integration with many vehicle models.
• Features a clear LED radial bar graph display that visually indicates lean or rich conditions at a glance, enabling quick and easy monitoring during driving.
• Provides precise digital readings of the air-fuel ratio, helping you identify and correct fueling issues promptly.
• Designed with a durable, high-quality construction to withstand the rigors of spirited driving and harsh conditions.
• Compact 52mm size fits standard gauge pods, making it suitable for a variety of dashboard configurations.
• Connects directly to the factory O2 sensor or uses the optional Autometer 2244 Narrowband O2 Sensor for flexible installation options.
• Ideal for performance enthusiasts, tuners, and anyone looking to prevent engine damage caused by running too lean under heavy load.
• Features LED lighting for visibility in all lighting conditions, ensuring you can monitor your air-fuel ratio at any time.

Construction & Design

The AutoMeter Sport-Comp II gauge features a robust, high-quality housing designed for durability and long-term reliability. Its 52mm diameter ensures a snug fit in most standard gauge pods. The face of the gauge is equipped with a bright, easy-to-read LED radial bar graph that provides instant visual feedback, complemented by a digital numeric display for precise readings. The internal electronics are engineered for accuracy and stability, ensuring consistent performance over time.

The gauge's wiring harness and sensor connections are designed for straightforward installation, with compatibility for factory wiring or the optional Autometer 2244 Narrowband O2 Sensor. Its compact design and rugged construction make it suitable for both daily drivers and high-performance applications, including racing and off-road use.

Performance & Sound

This gauge does not directly influence engine performance but provides critical real-time data that can help you optimize your tuning and prevent damage. By accurately indicating lean or rich conditions, it supports better fuel management and engine health. The visual LED bar graph offers immediate feedback, allowing you to make quick adjustments during tuning or spirited driving. Its reliable readings help you maintain optimal air-fuel ratios, supporting engine longevity and efficiency.

Installation & Fitment

The AutoMeter Sport-Comp II 52mm Lean-Rich Gauge is designed for easy bolt-on installation. It mounts into standard 52mm gauge pods, and wiring is straightforward, connecting directly to your vehicle's factory O2 sensor or the optional Autometer 2244 Narrowband O2 Sensor. No cutting, drilling, or complex modifications are typically required, making it suitable for DIY installation. Proper wiring and calibration ensure accurate readings, and the compact size allows for flexible placement on your dashboard or A-pillar.

• Connects directly to factory narrowband O2 sensors or uses the optional Autometer 2244 sensor.
• No tuning or calibration is usually necessary beyond initial setup.
• Designed for vehicles with 0-1V narrowband O2 sensors, commonly found in many late-model cars.

What's Included

• AutoMeter Sport-Comp II 52mm Lean-Rich Digital Air/Fuel Ratio Gauge
• Wiring harness and sensor connectors
• Installation instructions

Ideal For

• Performance enthusiasts tuning their vehicles for maximum power and efficiency
• Drivers seeking to prevent engine damage caused by running too lean
• Anyone wanting real-time air-fuel ratio monitoring during spirited driving or tuning sessions
• DIY installers looking for a straightforward, reliable gauge upgrade

Emissions Note

This product is designed for off-road or racing use only and may not be legal for street use in all jurisdictions. Please check local regulations before installation.