TRE PERFORMANCE
About TREperformanceContact UsNewsPoliciesProject Cars
SHOP ONLINE
Air InductionBrakesClutch/FlywheelElectronicsEnginesExhaustFeatured ItemsFront End Accessory Drive SystemsFuel SystemInteriorOil SystemRear EndRotating AssemblySuperchargersTop End Engine kitsTuning ServicesTurbochargersValve CoversValvetrainGarage SaleCustomer RidesTRE Project Rides

Contact Us

1725 Monrovia Ave. STE D7 Costa Mesa, CA 92627
877-514-9494

Safe & Secure Shopping

Copyright © 2026 TRE Performance. All Rights Reserved. Powered by  Web Shop Manager.

tre-performance
About TREperformanceContact UsNewsPoliciesProject Cars
NEWSTRE PROJECT RIDESCUSTOMER RIDES
ContactPoliciesAbout UsFAQs

MY CART

YOUR CART IS EMPTY

Browse parts and accessories to get started.

tre-performance
The Racers Edge PerformanceSALES@TREPERFORMANCE.COM
760-586-5617
Cylinder Heads
Air Induction
Engines
Fuel System
Interior
Superchargers
Top End Engine kits
Cylinder Heads
Air Induction
Engines
Fuel System
Interior
Superchargers
Top End Engine kits
HOME / PRODUCT / Ballenger Motorsports OBDII Wideband Kit W/ Air Fuel Monitor
Ballenger Motorsports OBDII Wideband Kit W/ Air Fuel Monitor

Ballenger Motorsports OBDII Wideband Kit W/ Air Fuel Monitor

SKU: AFR500v3
$524.99
Loading options…

Description

In need of an air-fuel-ratio monitor kit for your vehicle? Measure your AFRs with extreme precision using Ballenger Motorsports’ newest model of their AFR500 Air Fuel Kit.

As one of the most critical tools a tuner requires for properly calibrating a vehicle, the AFR500 Air Fuel Ratio Monitor provides professional grade measurement of air-fuel-ratio without breaking the bank. This kit offers a linear analog output to be used as an input to engine control systems, gauges, or data acquisition systems and is compatible with HP Tuners’ software for diagnostics and calibration. This AFR500v3 kit is capable of reading air-fuel ratio values from 9.0:1 to 16.0:1 (0.62-1.1λ) (standard range) with a resolution of 0.1 to provide excellent resolution in the tuning range of most performance vehicles.

Note: Will work with AFM, Lambda or oxygenated fuel method of measurements by changing the internal jumpers.

*Notice, this is for NON-CAN applications.

There are many options available for HP Tuner Hardware & Unlocks. If you have any questions please email sales@TREperformance.com or call 760-586-5617.


The AFR500v3 Kit includes:
Large, bright digital display controller (~3.4in x 2.7in x 1.3in).
13ft wiring harness with sealed connections.
Bosch Production Grade Sensor.
Standard measurement range.
Display gasoline (standard).
Weld in steel exhaust boss and plug.
Mounting Velcro.
Comprehensive Installation, troubleshooting, and tuning manual.
0-5 volt Analog Output Signal.
11-28 volt Input Power (24v system capable).
Compatibility with most aftermarket ECUs or unlocked OE ECUs


Compatible Fuel Types:
Gasoline / Petrol (leaded or unleaded)
Alcohol (Methanol)
Ethanol (E100, E85, E20, E15, E10, etc)
Flex Fuels
Compressed Natural Gas (CNG)
Liquefied Petroleum Gas (LPG)
Propane
Many other combustible fuels


AFR500v3 Features:
A digitally derived output with a higher resolution digital/analog converter
FOUR times the measurement resolution (4096 increments compared to the previous 1024)
The ASIC chips, one of the most common points of failure from electrostatic damage, will be completely replaced with a custom board providing better protection and upgrade capabilities.
The ability to display from 0.0 to 6.0 in lambda setting for better flexibility with alternate fuels such as diesel.
Ability to upgrade firmware for future sensor types
All harnesses, control units, accessories, etc are backwards and forwards compatible
Options are selectable at any time via internal jumpers
NTK Calibration grade sensor highly recommended for low AFR methanol applications. NTK Production Grade is the least expensive sensor we recommend for methanol applications.


Why Use A Wideband Air/Fuel Controller: 
Accurate AFR/Lambda data is critical when tuning an engine. Running rich (very low air/fuel ratio, excessive fuel) can cause a loss in power, while running too lean (very high air/fuel ratio, not enough fuel) may result in serious engine damage. Using a wideband air/fuel controller during the tuning process allows you to monitor AFR and adjust tuning parameters to optimize them for maximum power and efficiency. AEM has a comprehensive line of highly accurate, reliable wideband air/fuel controllers that can help ensure your vehicle is optimally tuned.

Tuning Manual

Jumper Diagram

Tell a Friend

Your Name:
Product:Ballenger Motorsports OBDII Wideband Kit W/ Air Fuel Monitor

200 characters remaining