Skip to content
  • Facebook
  • Instagram
  • YouTube

Welcome to our store

Free UK Shipping On Orders Over £300

A question? Visit our contact page

  • Parts
  • TUNING SERVICES
  • BRANDS
  • SHOP BY CAR
  • TECH BLOGS
  • ABOUT US
  • CONTACT US
Login
  • Facebook
  • Instagram
  • YouTube
Search
Motorsport Calibrations
  • PartsParts
  • TUNING SERVICESTUNING SERVICES
  • BRANDSBRANDS
  • SHOP BY CARSHOP BY CAR
  • TECH BLOGSTECH BLOGS
  • ABOUT USABOUT US
  • CONTACT USCONTACT US
Search Login Cart 0
Cart

Your cart is currently empty.

Not sure where to start?
Try these collections:

  • Featured Products
Spend £300.00 more to reach free shipping!
    Order special instructions
    Estimate shipping
    Discount
      Tax included. Shipping calculated at checkout.
      Subtotal
      £0.00 GBP
      View cart
      Recently viewed
      Search
      • 034 Motorsport
      • Airlift
      • Airtec
      • BC Racing
      • Bilstein
      • D2 Racing
      • Devils Own Methanol
      • Dragy
      • do88
      • Don Octane
      • Dodson Motorsport
      • EBC Brakes
      • Ecumaster
      • Forge Motorsport
      • Garrett
      • GFB Go Fast Bits
      • Goodridge
      • Hardrace
      • IE Intergrated Engineering
      • JE Pistons
      • K Sport
      • Michelin
      • Micky Tompsons
      • Millers Oil
      • Milltek
      • Motul
      • Nankang
      • NGK
      • OEM Parts
      • OZ Racing
      • P3 Guages
      • Powerflex
      • Protrack
      • Pulsar Turbo
      • Quaife
      • Racingline
      • Ramair
      • Rotiform
      • Scorpion
      • Supertech
      • Syvecs
      • Team Dynamics
      • Toyo
      • Turbosmart
      • Threadstone
      • Torqbyte
      • TTE The Turbo Engineers
      • Wavetrac
      • Wizards Of Nos
      • Vossen

      We use cookies

      This site uses cookies for better user experience and analytics.

      Home Search 0 Cart Account
      AEM X-Series Wideband UEGO Afr Sensor Controller Gauge With Obdii Connectivity

      Vendor:AEM Electronics

      AEM X-Series Wideband UEGO Afr Sensor Controller Gauge With Obdii Connectivity

      £318.05 GBP

      AEM-30-0334

       
       
      This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.

      Share:

      • Share on Facebook
      • Share on X
      • Share on WhatsApp
      • Share by Email
      Share
      Share
      • Facebook Share on Facebook
      • X (Twitter) Share on X
      • WhatsApp Share on WhatsApp
      • E-mail Share by Email

      AEM X-Series Wideband UEGO AFR Sensor Controller Gauge with OBDII Connectivity. Includes: X-Series Wideband Controller Gauge, Bosch LSU 4.9 Sensor, Wiring Harnesses, Black Bezel, Black AFR/Lambda Faceplate, OBD2 Cable & O2 Sensor Bung

      AEM's X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge (PN 30-0334) provides tuners who are using piggyback tuning modules or open source software with the ability to view AFR through the factory CAN-bus stream that is output by the factory ECU, and deliver the most accurate, safe and powerful tune. The 30-0334 X-Series OBDII Wideband Gauge is validated to work with EFILive, HPTuners and DashDaq software.

      The X-Series Wideband AFR OBDII Gauge includes an OBDII pass-through connector and Bosch 4.9LSU sensor that can be free-air calibrated or used with the factory resistor calibration. Additional wiring for a 0-5v or RS232 Serial output can be added by the user for outputting to a data logger. This OBDII pass-through capability replaces the traditional AEMnet stream available in the 30-0300 X-Series Wideband AFR Gauge Controller.

      OBDII CAN-bus OUTPUT
      The OBDII output simulates an auxiliary ECU signal when plugged into a vehicle’s OBD port, which requires a unique address from the other ECUs already on a vehicle’s network. AEM’s default OBDII CAN address will work with most popular vehicles and adjustments should not be necessary. However, AEM has provided OBDII address programmability through the buttons on the gauge face if a different address other than the default address is required, allowing users to program ECU #, Parameter Identification (PID), Message Identifier, and Bit Rate.

      PATENTED X-DIGITAL TECHNOLOGY – It’s The Fastest
      X-Series Widebands are the fastest responding wideband air/fuel ratio controllers in independent testing against 17 other wideband UEGO air/fuel controllers.* The controller’s high speed, patented, X-Digital technology (Patent 9,575,030) ensures no loss of signal fidelity and full transient response, making it able to identify the slightest fluctuations in AFR and output them in full value.

      WHY RESPONSE TIME MATTERS
      Faster response time improves wideband feedback control, and can provide a safer, more powerful and accurate tune. AEM’s Wideband Controllers with X-Digital technology reduce deadtime and can improve the performance of your vehicle through more accurate AFR tuning.

      FACTORY CALIBRATION RESISTOR OR FREE-AIR CAL, IT’S YOUR CHOICE!
      X-Series Wideband Gauges and the X-Series Inline Controller support the popular Bosch 4.9LSU sensor, and can utilize both the factory calibration resistor and free-air calibration methods. This allows users to take advantage of the precise factory resistor calibration when a sensor is new but then allows for free-air calibrations if the user desires when the sensor ages.** It’s the perfect marriage of simplicity and accuracy!

      WHAT IS A WIDEBAND UEGO AIR/FUEL CONTROLLER?
      AEM's Wideband UEGO (Universal Exhaust Gas Oxygen, pronounced “You-Way-Go”) Controllers are powerful, cost effective tuning tools that allow users to accurately monitor the Air/Fuel Ratio (AFR) of their engine.

      WHY USE A WIDEBAND AIR/FUEL CONTROLLER?
      Accurate AFR data is critical when tuning an engine. Running rich (very low air/fuel ratio, excessive fuel) can cause a loss in power, while running too lean (very high air/fuel ratio, not enough fuel) may result in serious engine damage. Using a wideband air/fuel controller during the tuning process allows you to monitor AFR and adjust tuning parameters to optimize them for maximum power and efficiency. AEM has a comprehensive line of highly accurate, reliable wideband air/fuel controllers that can help ensure your vehicle is op...

      Pairs well with

      AEM X-Series Wideband UEGO Afr Sensor Controller Gauge With Obdii Connectivity

      AEM X-Series Wideband UEGO Afr Sensor Controller Gauge With Obdii Connectivity

      £318.05 GBP
      Need help?

      Get Expert Fitment and Technical Advice from Industry Specialists.

      • Shipping Information

        Shipping Policy

      • Contact Us

        Use this text to answer questions in as much detail as possible for your customers.

      Fabo Barrett
      Fabo Barrett
      12 months ago

      Mk5 R32 Turbo. I have had the best experience top quality service I would not think about going anywhere else! From helping me install my ecu over the phone with help on wiring sensors troubleshooting I would have been totally lost not to mention the remote mapping service so I was able to fit it in around work and other things the car runs like a dream pulls hard in all gears and is music to my ears. I will not take my cars anywhere else 5* Thank you for bringing my project to life

      camille.
      camille.
      a year ago

      Something came up that required me to get a car part urgently and under a time limit and I was having trouble tracking down local businesses that could source it for me. Luckily, I came across Sameer’s contact information and reached out. He was brilliant - answered my query over the phone, got the part ordered as soon as was physically possible and kept me updated every step of the order and delivery process. He solved my issue with professionalism and expertise. Very happy with the service received.

      Ross Thompson
      Ross Thompson
      a year ago

      Sam always does a quality job when it's comes to mapping my car. It has been with Sam multiple times for mapping, tweeking and problem solving and is very knowledgeable when it comes to ECU masters. The passion toward cars and mapping reflects in his work!

      Barrington Cummings
      Barrington Cummings
      a year ago

      Absolutely great services. Great communication. Always ready to help. My car is now faster, more reliable, and made way more power. Sam is the man.

      Mesum Naqvi
      Mesum Naqvi
      8 months ago

      Great mapper. Have full confidence in him, helped out with everything i needed even when some things were not right with the car. Highly recommend👍

      Store Policy's
      • Shipping Policy
      • Returns Policy
      • Privacy policy
      • Terms and Conditions
      Disclaimers
      • Remote ECU Tuning Disclaimer
      • Sale for Emissions-Related Parts
      • Emissions-Related Modifications
      • Standalone Engine Management System (ECU) Emissions Disclaimer
      • Facebook
      • Instagram
      • YouTube
      © 2026 Motorsport Calibrations. Powered by Shopify
      • Refund policy
      • Privacy policy
      • Terms of service
      • Shipping policy
      • Contact information
      • Apple Pay
      • Google Pay
      • Klarna
      • Mastercard
      • Shop Pay
      • Visa
      • Choosing a selection results in a full page refresh.
      • Opens in a new window.