AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge
Universal fit Not vehicle-specific
Fitment notes- Authorized dealerGenuine AEM parts, sourced direct
- 30-day returnsSee the return policy
- Diesel techs on the line908-223-9744, call or text
- Secure checkout
AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge
AEM X-Series Wideband Gauges and the X-Series Inline Controller support the popular 4.9LSU sensor and offer both factory calibration resistor and free-air calibration methods. Factory resistor calibration provides precise calibration when the sensor is new, while free-air calibration can help correct drift as the sensor ages. AEM Wideband UEGO (Universal Exhaust Gas Oxygen) Controllers are powerful, cost-effective tuning tools that accurately monitor engine Air/Fuel Ratio (AFR). Accurate AFR data is critical for tuning because running rich can reduce power, while running too lean may cause serious engine damage. The UEGO sensor connector should not be modified because it contains a laser-etched calibrated resistor specifically created for the attached sensor; modifying it will invalidate the sensor's output. Independent testing by 360° Product Testing, reported August 31, 2015, against 17 competitor wideband UEGO Air/Fuel Controllers found the AEM X-Series Inline with 4.9LSU sensor and X-Series Wideband UEGO AFR Gauge with 4.9LSU sensor recorded the fastest response times. Wideband UEGO sensors are wear items affected by leaded fuel, automotive fluids, particulates, mechanical or thermal shock, and being unheated while exposed to exhaust. Free-air calibration may correct drift, but sensor replacement as part of regular vehicle maintenance is recommended. Follow the instruction manual when performing free-air calibration. Display Gasoline and OBDII Gasoline: 8.0:1-20.0:1 AFR; Display and OBDII Lambda: .55-2.00; 0-5V Gasoline: 8.5:1-18.0:1 AFR; 0-5V Lambda: .58-1.23; 0-5V E85: 5.7:1-12.0:1 AFR; 0-5V Ethanol: 5.2:1-11.0:1 AFR; 0-5V Methanol: 3.75:1-8.0:1 AFR. 0-5V outputs require wiring.
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
- Brand
- AEM
- Part number
- 30-0334
- SKU
- AEM30-0334
- UPC
- 840879025854
- Category
- Gauges
- Weight
- 1.5 lb
- Shipping
- Ground, ships in 1 to 2 business days
Universal fit. This part is not vehicle-specific. Check the dimensions in the description, or text us a photo of what you are replacing and we will confirm it before you order.
Not sure it fits? Call 908-223-9744 or text us the year, model and engine. We confirm fitment before you order.
- Shipping
- In-stock parts ship in 1 to 2 business days. Tracking is emailed as soon as the label prints.
- Returns
- 30-day returns on unused parts in the original packaging. Return policy.
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If it is not here, call or text the counter. Real people, real answers.
Fitment
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Will this fit my truck?
The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.
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What if I order the wrong part?
Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.
Shipping
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When will it ship?
In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.
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Why did I only get part of my order?
We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.
Returns and warranty
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What is the return policy?
30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.
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How do warranty claims work?
We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.
Paying
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Can I pay over time?
Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.
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What is a core deposit?
Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.
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The shop floor, Nazareth, PAFull Send Diesel, Nazareth, PA
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Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.
Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.
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