AEM X-Series Inline Wideband UEGO Controller

AEM X-Series Inline Wideband UEGO Controller | Fast AFR Tuning

Achieve lightning-fast AFR feedback with the AEM X-Series Inline Wideband UEGO Controller. Features patented X-Digital technology, Bosch 4.9 LSU sensor, and CANbus/0-5V outputs.

The AEM X-Series Inline Wideband UEGO Air/Fuel Ratio Controller (PN 30-0310) delivers high-speed, laboratory-grade AFR tracking for performance vehicles, race builds, and engine dynamometers. Powered by AEM's patented X-Digital Technology (Patent 9,575,030), this controller achieves an industry-leading average response time of ~20ms, drastically reducing deadtime to deliver real-time feedback for precise closed-loop tuning.

Engineered for discrete installation, the unit features a low-profile, weather-resistant enclosure with status LEDs, making it ideal for engine bays or concealed mounting when a dashboard gauge is not required. Included is a factory-calibrated Bosch 4.9 LSU Wideband Sensor, which operates out of the box using a precise factory calibration resistor while also offering optional free-air calibration support as the sensor ages. With multiple output protocols (0-5V Analog, RS-232, and AEMnet CANbus), the X-Series Controller seamlessly integrates with standalone ECUs, piggyback systems, and external data loggers across gasoline, E85, ethanol, and methanol applications.

Best Uses

1. Standalone ECU Integration: Feeding high-speed AFR data into aftermarket ECUs (e.g., AEM Infinity, Haltech, Motec, Link) for closed-loop fuel control and auto-tuning.
2. Concealed / Clean Engine Bay Installations: Applications where a traditional 52mm interior dashboard gauge is not desired or needed.
3. Dynamometer & Engine Tuning: Portable or chassis dyno setups requiring accurate, transient exhaust gas monitoring.
4. Multi-Cylinder Data Logging: Daisy-chaining multiple inline controllers over AEMnet (CANbus) for individual cylinder wideband monitoring up to 16 cylinders.
5. Alternative Fuel Applications: Monitoring and tuning vehicles running on Gasoline, E85, Ethanol, or Methanol fuels.

Features

1. Patented X-Digital Technology: Built on U.S. Patent 9,575,030 to deliver full signal fidelity with an ultra-fast ~20ms response time.
2. Bosch 4.9 LSU Sensor Included: Comes complete with a high-accuracy LSU 4.9 UEGO sensor and weld-in bung.
3. Dual Calibration Flexibility: Operates out of the box using the laser-etched factory resistor trim, with optional free-air calibration capability for aging sensors.
4. Triple Output Protocols: Features 0-5V Analog, RS-232 Serial, and AEMnet CANbus outputs for universal compatibility with loggers and ECUs.
5. Weather-Resistant Low-Profile Enclosure: Durable, compact housing with status indicator LEDs designed to withstand tough engine bay environments.

Benefits

1. Safer & More Accurate Engine Tuning: Virtually eliminates response delay (deadtime), allowing for immediate corrections during transient throttle changes to prevent lean conditions.
2. Clean & Stealthy Installation: Eliminates dashboard clutter by tucking away under the hood or dash while remaining fully functional.
3. Zero Setup Calibration Required: Uses pre-calibrated sensor resistor technology, saving setup time and removing calibration errors during initial install.
4. Multi-Fuel Capability: Accurately reads Lambda and AFR values across a variety of fuel types (Gasoline, E85, Ethanol, and Methanol) without changing hardware.
5. Broad System Voltage Compatibility: Operates reliably on vehicle power systems up to 16V, ensuring stable performance during extreme racing conditions.