AEMX-Series Wideband UEGO AFR Sensor Controller Gauge with OBDII Connectivity

Q: How would this interface with a microsquirt stand alone ecu and on a car pre-obd ii?

Don't get this one. Get the 30-0300, it comes with the complete harness. The 30-0333 is for new cars that can read the sensor off the canbus. Get the 30-0300.

Q: Why does it show pictures of the 30-0311 but states this product is the 30-0344 for “piggy back” capabilities with hp tuners?

Not entirely sure what you mean. My kit came as pictured and works as advertised.

Q: Will this wideband gauge work in “standalone mode”? i have a carbureted vehicle i need to tune and have no use for the obdii connectivity.

Yes. The gauge will display AFR on its own without connecting any of the obdii wiring

Q: Does the digital gauge still work if the obd port is not connected? I would use this wideband for multiple car use not a single install.

Yes. The OBD pass through connector is just to get the information into your data logging software. The sensor reads into the gauge and then sends signal through a separate plug to the OBD port.

Product ID: 28770127

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Details

Brand
AEM
Material
Plastic Metal
Item dimensions L x W x H
6 x 5 x 5
Item Weight
0.5 Kilograms
UPC
840879025199

⚡Fastest wideband AFR response

📊Precision AFR display to hundredths

🔗Seamless OBDII CAN-bus integration

Frequently Bought Together

AEM X-Series Wideband UEGO AFR Sensor Controller Gauge with OBDII Connectivity

HP Tuners PROLINK+ Cable with Analog and CAN Bus inputs for External Sensors Using MPVI2+ and MPVI3 OBD2 Scan Tools, Cable Only

GlowShift Universal Black Single Gauge Swivel Dashboard Pod - Fits Any Make/Model - Swivels 360 Degrees - ABS Plastic - Mounts (1) 2-1/16" (52mm) Gauge to Vehicle's Dash

Description

⚡ Tune smarter, not harder — dominate your drive with precision AFR control!

ULTRA COMPACT DESIGN - Sleek 52mm gauge with just 0.825” depth fits seamlessly into any dash setup.
CUSTOMIZABLE DISPLAY MODES - Switch between AFR, Lambda, and O2% with 3- or 4-digit precision to suit your tuning style.
ADVANCED DATA LOGGING READY - Optional 0-5V & RS232 outputs enable professional-grade feedback control and logging.
LIGHTNING FAST AFR READINGS - Experience the quickest wideband sensor response for real-time tuning precision.
PLUG PLAY OBDII CONNECTIVITY - Effortlessly stream AFR data through your factory ECU’s CAN-bus—perfect for piggyback or open-source tuning.

The AEM X-Series Wideband UEGO AFR Sensor Controller Gauge delivers the fastest wideband air-fuel ratio readings with seamless OBDII CAN-bus integration. Featuring a compact 52mm gauge, customizable display, and optional data logging outputs, it’s engineered for professional tuners and enthusiasts seeking real-time, precise AFR feedback through factory ECU systems.

Specifications

Brand	AEM
Material	Plastic Metal
Item dimensions L x W x H	6 x 5 x 5 inches
Item Weight	0.5 Kilograms
UPC	840879025199 608067031410 672713960775
Global Trade Identification Number	00672713960775
Manufacturer	AEM Electronic Inc.
Model	Universal
Item Weight	1.1 pounds
Product Dimensions	6 x 5 x 5 inches
Item model number	30-0333
Is Discontinued By Manufacturer	No
Manufacturer Part Number	30-0333
OEM Part Number	30-0334

Have a Question? See What Others Asked

How would this interface with a microsquirt stand alone ecu and on a car pre-obd ii?

Why does it show pictures of the 30-0311 but states this product is the 30-0344 for “piggy back” capabilities with hp tuners?

Will this wideband gauge work in “standalone mode”? i have a carbureted vehicle i need to tune and have no use for the obdii connectivity.

Does the digital gauge still work if the obd port is not connected? I would use this wideband for multiple car use not a single install.

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