AEM's X-Series Inline Wideband UEGO Air/Fuel Ratio Controller is built on patented, 100% digital X-Digital Technology, making it one of the fastest responding wideband controllers in independent testing against 17 competitors. It replaces the popular 30-2310 Inline Controller with a weather-resistant, low-profile enclosure and status LEDs, ideal for users who want fast response for data logging or feedback control on an engine management system.
The controller includes a 0-5V and RS232 serial port output for feedback control and data logging, plus an AEMnet (CANbus) output for data logging and daisy-chaining up to 16 cylinders. It supports vehicle/system voltages up to 16V and works on EFI or carbureted applications and dynamometers using gasoline, methanol, ethanol, diesel, propane, and CNG. This product carries a California Proposition 65 warning per the manufacturer's data.
Specifications:
- Patented X-Digital technology (Patent 9,575,030)
- Includes Bosch 4.9LSU wideband UEGO sensor
- Factory calibrated resistor; free-air calibration also supported as sensor ages
- Compatible with vehicle/system voltages up to 16V
- 0-5V and RS232 output for data logging/feedback control; AEMnet (CANbus) for daisy-chaining up to 16 cylinders
- Weather-resistant, low-profile enclosure
- Warranty: 12 months, excluding Bosch O2 sensor
- Part Number: 30-0310
FAQ
What makes the X-Series Inline Controller faster responding?
Patented X-Digital technology reduces deadtime between when exhaust gas composition changes and when the change is reported, improving feedback control accuracy and tuning safety.
What sensor does it use?
It uses a Bosch 4.9LSU wideband UEGO sensor with a factory-calibrated resistor; free-air calibration is also supported if the sensor ages.
What outputs does the controller provide?
It provides 0-5V and RS232 outputs for feedback control and data logging, plus an AEMnet CANbus output for daisy-chaining up to 16 cylinders.

