AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge, 30-0334

Additional wiring for a 0-5v or RS232 Serial output can be added by the user for outputting to a data logger. This OBDII pass-through capability replaces the traditional AEMnet stream available in the 30-0300 X-Series Wideband AFR Gauge Controller.OBDII CAN-bus OUTPUTThe OBDII output simulates an auxiliary ECU signal when plugged into a vehicle's OBD port, which requires a unique address from the other ECUs already on a vehicle's network. X-Series Wideband UEGO AFR Sensor Controller Gauge with OBDII Connectivity. Includes: X-Series Wideband Controller Gauge, Bosch LSU 4.9 Sensor, Wiring Harnesses, Black Bezel, Black AFR/Lambda Faceplate, OBD2 Cable & O2 Sensor Bung Accurate AFR 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.

• X-Series Wideband UEGO AFR Controllers Gauge were fastest responding wideband air/fuel ratio controllers in an independent test vs. 17 competitors wideband AFR controllers
• 0-5V & RS232 output for data logging and feedback control, AEMnet (CANbus) for data logging and daisy-chaining multiple controllers up to 16 cylinders
• Factory calibrated resistor does not require free-air calibration, but technology allows for free-air calibration as sensor ages if user desires
• Black bezel and black dual faced faceplate included (gauge only, silver bezel/white gauge option sold separately, PN 30-0300-ACC)
• User configurable display via buttons on the gauge face for changing AFR values, Lambda and O2%, and 3- or 4-digit display
• OBD-II Output; CAN based compatible with 2008 or newer vehicles
• Patented X-Digital wideband technology (Patent 9,575,030)
• Compatible with vehicle/system voltages up to 16V
• 52mm gauge diameter and slim 0.825" gauge depth
• Includes Bosch 4.9LSU wideband UEGO sensor
• Can display AFR values in hundredths of %
• Gauge cup depth only .200" deep
• Auto dimming feature
• Locking connectors

The AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge provides fast, accurate air/fuel ratio monitoring for engine tuning, performance calibration, and data logging. Part number 30-0334 combines a wideband controller gauge with OBDII CAN-bus connectivity, allowing the gauge to simulate an auxiliary ECU signal when connected to a compatible vehicle's diagnostic port. The OBDII output is CAN-based and compatible with 2008 or newer vehicles that support the required network functionality.

Designed around AEM's patented X-Digital wideband technology, the controller delivers precise readings while supporting AFR, Lambda, and O2 percentage display formats. The gauge includes a factory-calibrated resistor, so free-air calibration is not required during normal installation. Free-air calibration remains available as the Bosch LSU 4.9 sensor ages. User-configurable settings, selectable three- or four-digit display modes, automatic dimming, and display resolution down to hundredths of a percent make it practical for both street and competition applications.

The AEM X-Series controller offers 0-5V and RS232 outputs for data logging or feedback control, along with CANbus functionality for data logging and daisy-chaining multiple controllers. Additional wiring may be added by the user for 0-5V or RS232 data logger integration. The compact 52 mm gauge uses a slim housing and includes a black bezel, black AFR/Lambda faceplate, locking connectors, wiring harnesses, an OBD2 cable, a Bosch LSU 4.9 wideband UEGO sensor, and an O2 sensor bung. Vehicle fitment depends on OBDII compatibility and the vehicle's CAN network configuration.

Key Product Specifications and Technical Data

• Brand: AEM
• Part Number: 30-0334
• Product Type: X-Series wideband UEGO AFR sensor controller gauge
• Communication: OBDII CAN-bus output with CAN-based compatibility for 2008 or newer vehicles
• Data Outputs: 0-5V, RS232, and CANbus support
• Sensor: Bosch LSU 4.9 wideband UEGO sensor
• Display Functions: AFR, Lambda, and O2 percentage with selectable three- or four-digit display
• Electrical Compatibility: Vehicle and system voltages up to 16 volts

What's Included

• X-Series wideband controller gauge
• Bosch LSU 4.9 wideband UEGO sensor
• Wiring harnesses
• Black bezel
• Black AFR/Lambda faceplate
• OBD2 cable
• O2 sensor bung

Features:

• Fast-response wideband measurement: Delivers rapid AFR data for accurate tuning and performance monitoring.
• OBDII CAN-bus output: Simulates an auxiliary ECU signal through the vehicle's OBD port on compatible 2008 or newer vehicles.
• Multiple data outputs: Provides 0-5V, RS232, and CANbus connectivity for data logging, feedback control, and controller networking.
• Factory-calibrated sensor control: Eliminates the need for routine free-air calibration while retaining free-air calibration capability as the sensor ages.
• User-configurable display: Shows AFR, Lambda, or O2 percentage with selectable three- or four-digit readouts.
• Patented X-Digital technology: Supports accurate, high-resolution wideband monitoring for engine tuning.
• Compact gauge design: Uses a 52 mm gauge format with a slim housing for flexible installation.
• Complete installation package: Includes the controller, Bosch LSU 4.9 sensor, harnesses, OBD2 cable, black trim, faceplate, and O2 sensor bung.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1