AEM 30-0310 X-Series Inline Wideband UEGO AFR Controller w Bosch 4.9LSU Sensor

AEM X-Series Inline Wideband UEGO Air/Fuel Ratio Controllers use patented 100% digital technology, making them the fastest-responding wideband AFR controllers in independent tests. Replacing the 30-2310 model, the X-Series features a weather-resistant, low-profile design with status LEDs€”ideal for users who prioritize speed and data logging over a gauge display.

It includes 0-5V, RS232, and AEMnet (CANbus) outputs, supporting up to 16V systems and a range of fuels including gasoline, methanol, ethanol, diesel, propane, and CNG. It's compatible with EFI, carbureted engines, and dynos.

Patented X-Digital Technology (Patent 9,575,030) ensures fast, accurate AFR readings by minimizing signal loss and capturing small fluctuations in real time.

Why Fast Response Matters:

Quick response time reduces deadtime€”the delay between exhaust changes and sensor reporting€”leading to safer, more accurate, and powerful tuning, especially critical for high-RPM, high-boost, or feedback-controlled EFI systems.

Brand: AEM Electronics

Part: AEM 30-0310 X-Series Inline Wideband UEGO AFR Controller w Bosch 4.9LSU Sensor

Gauge Size: 52mm

Face Plates: Interchangable Face Plates

Sensor Included: Yes - Bosch 4.9LSU

Features:

X-Series Inline Wideband UEGO AFR Controller were fastest responding wideband air/fuel ratio controllers in an independent test vs. 17 competitors wideband AFR controllers

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

Includes Bosch 4.9LSU wideband UEGO sensor

Factory calibrated resistor does not require free-air calibration, but technology allows for free-air calibration as sensor ages if user desires

Compatible with vehicle/system voltages up to 16V

0-5V & RS232 output for data logging and feedback control, AEMnet (CANbus) for data logging and daisy-chaining multiple controllers up to 16 cylinders

Weather-resistant, low profile design