AEM X-Series OBDII Wideband Air/Fuel Ratio Gauge 30-0334

AEM X-Series OBDII Wideband UEGO AFR Gauge (30-0334)
The AEM X-Series OBDII Wideband gives tuners a fast, accurate way to monitor AFR directly through the vehicle’s CAN-bus—perfect for setups using piggyback systems or open-source tuning software. It’s fully validated with DiabloSport inTune 3, Trinity 2, EFILive, HP Tuners, and DashDaq.

The gauge includes an OBDII pass-through harness and a Bosch 4.9 LSU sensor, which can use either the built-in resistor calibration or be free-air calibrated. Users can also add 0–5V or RS232 outputs for sending AFR data to loggers.

OBDII CAN Integration
The gauge acts as an auxiliary CAN device when plugged into the OBD port. It uses AEM’s default CAN address, which works with most vehicles, but you can manually program ECU address, PID, message ID, and bit rate directly from the gauge.

Fast X-Digital Technology
AEM’s patented X-Digital controller is the fastest-responding wideband tested against 17 competitors. The high-speed signal improves tuning accuracy, safety, and power by giving near-instant AFR feedback.

Features

• Fastest responding wideband AFR controller in independent testing

• Patented X-Digital technology (Patent 9,575,030)

• Includes Bosch 4.9 LSU sensor

• Factory calibration ready; free-air calibration optional

• Works up to 16V systems

• 0–5V & RS232 outputs for logging and feedback control

• Supports AEMnet (CANbus) for multi-controller setups (up to 16 cylinders)

• Displays AFR, Lambda, or O₂%

• 52mm gauge, ultra-slim 0.825" depth (0.200" cup depth)

• Auto-dimming

• Configurable via front buttons

• Includes black bezel and black dual-face plate

• Locking connectors for reliable installation