The 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. AEM’s default OBDII CAN address will work with most popular vehicles and adjustments should not be necessary. However, AEM has provided OBDII address programmability through the buttons on the gauge face if a different address other than the default address is required, allowing users to program ECU #, Parameter Identification (PID), Message Identifier, and Bit Rate. Features: 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 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
