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AEM

X-Series Inline Wideband UEGO AFR Sensor Controller

Fits: Universal

Sale price $22195 Regular price$249.95 Save $28
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Available To Order, Ships Around Nov 10, 2026

Pay over time available · Est. $6.94/payment
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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

Pay over time available · Est. $6.94/payment
ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

AEM X-Series Inline Wideband UEGO AFR Sensor Controller
Fits: Universal

Fitment

Please Note: Universal fitment. Inline wideband controller - no gauge display.
  • Universal

Description

The AEM X-Series Inline Wideband UEGO AFR Sensor Controller is a universal inline wideband air/fuel ratio controller with patented X-Digital technology for data logging and feedback control, for users who do not need a gauge display. It has a weather-resistant, low-profile enclosure with status LEDs.

  • Part number: 30-0310
  • Fitment: Universal
  • 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 the sensor ages if the user desires
  • Supports vehicle and system voltages up to 16V
  • 0-5V and RS232 outputs for data logging and feedback control
  • AEMnet (CAN bus) output for data logging and daisy-chaining multiple X-Series controllers together (up to 16 cylinders)
  • Weather-resistant, low-profile enclosure with status LEDs
  • For use on EFI or carbureted applications and dynamometers, with gasoline, methanol, ethanol, diesel, propane and CNG
  • Replaces the 30-2310 Inline Controller

Frequently Asked Questions

Does this fit my vehicle?
This is a universal inline wideband controller; it is not vehicle specific.

What is included in the box?
The controller includes a Bosch 4.9LSU wideband UEGO sensor.

Does this controller have a gauge display?
No. This is an inline controller for users who do not need a gauge display; it provides 0-5V, RS232 and AEMnet outputs for data logging and feedback control.

Shipping and Delivery

Review our Shipping Policy for delivery details, shipping costs and exclusions.

Warranty and Support

For AEM warranty information, contact our support team.

Return and Refund

Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.

Proposition 65

Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov