SKU: 56598200850

AEM 30-0334 FITS: X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge Gauges

Sale price$128.08 Regular price$142.31
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

AEM 30-0334 FITS: X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge GaugesAccurate 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 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 optimally tuned.

Installation Instructions
  • X-Series Wideband UEGO AFR Controllers Gauge were fastest responding wideband air/fuel ratio controllers in an independent test vs. 17 competitors wideband AFR controllers
  • 0-5V & RS232 output for data logging and feedback control, AEMnet (CANbus) for data logging and daisy-chaining multiple controllers up to 16 cylinders
  • Factory calibrated resistor does not require free-air calibration, but technology allows for free-air calibration as sensor ages if user desires
  • Black bezel and black dual faced faceplate included (gauge only, silver bezel/white gauge option sold separately, PN 30-0300-ACC)
  • User configurable display via buttons on the gauge face for changing AFR values, Lambda and O2%, and 3- or 4-digit display
  • OBD-II Output; CAN based compatible with 2008 or newer vehicles
  • Patented X-Digital wideband technology (Patent 9,575,030)
  • Compatible with vehicle/system voltages up to 16V
  • 52mm gauge diameter and slim 0.825" gauge depth
  • Includes Bosch 4.9LSU wideband UEGO sensor
  • Can display AFR values in hundredths of %
  • Gauge cup depth only .200" deep
  • Auto dimming feature
  • Locking connectors
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 56598200850

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Toby W.
Pawtucket, US
★★★★★ 4
Order 1 size larger.
Size: X-Large, Color: Blue White Plaid
Nice shirt. The size is not accurate by any stretch of the imagination. I wear size xl in shirts except for this one. An xl fits like a large. Other than that I like the shirt. I would've given it 5 stars if not for the sizing. I'll give away this one and order an xxl. Just order a size above what you wear and you'll be happy.
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Reviewed in the United States on February 15, 2026
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Never received the order
Lexington, US
★★★★★ 5
Nice fit
Size: X-Large, Color: Grey
Great value for the money. Would buy again.
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Reviewed in the United States on April 30, 2026
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John Robinson
Lowell, US
★★★★★ 5
Satisfied with color and fit
Size: Small, Color: Light Purple
For the money, this is a good shirt. True, the material is a bit thin and there is a feeling of 'fragility' (loose threads here and there) but the color is nice, the texture is appropriate. The sizing is what I call "New American". I was a medium my whole life but supersizing has made me into a small. I haven't changed, Americans have grown bigger. I am six feet tall and a bit (180+ cm) and weigh 155 pounds (70kg and a bit). The small fits me just fine everywhere but the shoulders are just barely wide enough. If you have slightly wider shoulders but are similar to me otherwise, this may be too tight for you in that one place.
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Reviewed in the United States on May 13, 2025
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Joan A Bernard
Lake Worth, US
★★★★★ 3
Fits too tight at waist.
Size: XX-Large, Color: Wine
Quality of product satisfactory, however size labeling incorrect. I ordered a XXL that is too tight at the waist. It should be labeled XXL Trim.
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Reviewed in the United States on May 28, 2026
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KWC 1960
Massapequa, US
★★★★★ 5
Men’s Oxford Shirt
Size: Large, Color: Green
Very nice looking shirt. It’s comfortable and classy.
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Reviewed in the United States on April 9, 2026

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