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    • X-Series Inline Wideband AFR Controller Kit X-Digital Technology LSU 4.9 Sensor AEM Electronics
    • X-Series Inline Wideband AFR Controller Kit X-Digital Technology LSU 4.9 Sensor AEM Electronics
    • X-Series Inline Wideband AFR Controller Kit X-Digital Technology LSU 4.9 Sensor AEM Electronics
    • X-Series Inline Wideband AFR Controller Kit X-Digital Technology LSU 4.9 Sensor AEM Electronics
    • X-Series Inline Wideband AFR Controller Kit X-Digital Technology LSU 4.9 Sensor AEM Electronics
    • X-Series Inline Wideband AFR Controller Kit X-Digital Technology LSU 4.9 Sensor AEM Electronics
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    AEM X-Series Inline Wideband AFR Controller Kit, LSU 4.9 Sensor | 30-0310

    Vendor: AEM Electronics
    Part Number: 30-0310
    Save $26
    Sale Price $206.95 Regular Price $232.95

    Currently out of stock.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    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.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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