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Seller Store speedway_motors
(294115) 99.5%,

Location: Lincoln, Nebraska
Ships to: US,
Item: 266683655153

Return shipping will be paid by:Seller
Returns Accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
Return policy details:
Type:Air/Fuel Ratio Gauges
Item Length:5.40
Item Width:5.400
Item Height:5.400
Manufacturer Part Number:300300
Performance Part:Yes
Item Diameter:16 in
Vintage Part:No
Style:Racing
California Prop 65 Warning:Cancer & Reproductive Harm
OE/OEM Part Number:30-0300
Display Type:Digital
Color:Black
AEM:AEM
Universal Fitment:Yes
Material:Plastic
Superseded Part Number:30-4100

Features patented X-Digital wideband technology (Patent 9,575,030), Kit includes Bosch 4.9LSU wideband UEGO sensor, The factory calibrated resistor does not require free-air calibration, but technology allows for free-air calibration as sensor ages if user desires, It is compatible with vehicle/system voltages up to 16V, Has a 52mm gauge diameter and slim 0.825” gauge depth AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge Sku # 186300300 Mfr. Part # 30-0300 Condition New Brand AEM Electronics Sold Each Details Info AEM’s X-Series Wideband UEGO Air/Fuel Ratio Sensor Controller Gauges are built upon unique, patented 100% Digital technology (Patent 9,575,030) that makes them the fastest responding wideband air/fuel ratio controllers in independent testing*. The X-Series Wideband UEGO AFR Sensor Controller Gauge measures 2 1/16th-inch (52mm) in diameter and features a modern, visually striking faceplate and new seven-segment center display that is 87% larger than the 30-4110 AEM Wideband Gauge’s center display. This creates the perception of a larger overall gauge, but in a common 52mm size for easy mounting. Its slim depth (less than one inch overall) and ultra-slim cup depth of .200-inches dramatically increases its application base and potential mounting locations. The X-Series Wideband UEGO AFR Gauge has a user-configurable display via buttons on the gauge face that allows you to change AFR values for different fuels, Lambda or O2%, change the center display to three or four digits, perform a free-air calibration if desired as the sensor ages, and change the CAN message ID when linking multiple X-Series Inline Controllers or X-Series Controller Gauges. A black bezel and black dual-faced faceplate for air/fuel and Lambda are included, and an optional silver bezel with white dual-faced air/fuel and Lambda faceplate is available (PN 30-0300-ACC, sold separately). An Auto Dimming feature is included. Locking connectors ensure a positive connection between the harnesses and gauge and a new single board design adds to the new gauge’s durability. The gauge includes a 0-5v and RS232 Serial Port output for feedback control and data logging, and an AEMnet (CANbus) output for data logging. AEMnet allows additional X-Series Wideband Controllers to be daisy-chained together (up to 16 cylinders) for recording AFR in multiple cylinders. It supports vehicle/system voltages up to 16V, and can be used on EFI or carbureted applications, and dynamometers in applications using gasoline, methanol, ethanol, Diesel, propane, and CNG. X-DIGITAL TECHNOLOGY X-Digital wideband technology gives these controllers the ability to read and report values that other controllers do not, which can deliver more optimized engine tuning and a safer overall operating condition. The controller’s high-speed digital implementation 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 can reduce deadtime and improve the performance of your vehicle through more accurate AFR tuning. Deadtime is the delay between when exhaust gas composition changes and when that change is reported by the O2 sensor. While the flow of exhaust gases (transport delay) can affect deadtime, it is not the only source. Often, the sensing elements response to the gas is the largest contributor to deadtime when an engine is in high RPM under load. When tuning an engine using wideband AFR feedback control on an inertia dyno, deadtime affects the data you are looking at because it is reported in a different operating location than when it actually occurred. This means with long deadtimes, whatever changes you make to the base fueling will likely be in the wrong location. This can be particularly dangerous to high compression and high-boost forced induction vehicles and EFI systems that use feedback control to auto-tune. Reducing deadtime improves wideband feedback control, and can provide a safer, more powerful and accurate tune. AEM’s Wideband Controllers with X-Series digital technology can reduce deadtime and improve the performance of your vehicle through more accurate AFR tuning. FACTORY CALIBRATION RESISTOR OR FREE-AIR CAL, IT’S YOUR CHOICE! The X-Series Wideband Gauge and 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 optimally tuned. CAN I CHANGE THE AEM UEGO SENSOR’S CONNECTOR? No. There is a laser-etched, calibrated resistor in the sensor’s connector body. This resistor is specifically created for the exact sensor that it is attached to. Modifying this will invalidate the sensor’s output. * Independently tested at 360° Product Testing (results reported on August 31st, 2015) against 17 competitors wideband UEGO Air/Fuel Controllers. AEM X-Series Inline with Bosch 4.9LSU wideband sensor and AEM X-Series Wideband UEGO AFR Gauge with Bosch 4.9LSU sensor recorded the fastest response times. ** Wideband UEGO sensors are wear items and their lifespan is determined by many factors including contamination from leaded fuels, automotive fluids, particulates, mechanical or thermal shock and from being unheated and exposed to the exhaust stream. Free-air calibration may correct drift as a sensor ages, but it is recommended that they are replaced as part of your vehicle’s maintenance program. When performing free-air calibration, please follow the procedure outlined in the instruction manual. Features X-Series Wideband UEGO AFR Controller Gauge were the fastest responding wideband air/fuel ratio controllers in an independent test vs. 17 competitors wideband AFR controllers Patented X-Digital wideband 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 sensor ages if user desires Compatible with vehicle/system voltages up to 16V 0-5V & RS232 output for data logging and feedback control, AEMnet (CANbus) for data logging and daisy-chaining multiple controllers up to 16 cylinders Can display AFR values in hundredths of % 52mm gauge diameter and slim 0.825” gauge depth Gauge cup depth only .200” deep! Auto-dimming feature User-configurable display via buttons on the gauge face for changing AFR values, Lambda and O2%, and 3- or 4-digit display Black bezel and black dual-faced faceplate included (gauge only, silver bezel/white gauge option sold separately, PN 30-0300-ACC) Locking connectors Specs AFR VALUE RANGE BY FUEL TYPES: Display Gasoline values from 8.0:1 to 20.0:1 AFR Display Lambda values from .55 to 2.00 0-5V Output Gasoline values from 8.5:1 to 18.0:1 AFR CANbus Output Gasoline values from 8.0:1 to 20.0:1 AFR CANbus Output Lambda values from .55 to 2.00 0-5V Output Lambda values from .58 to 1.23 0-5V Output E85 values from 5.7:1 to 12.0:1 AFR 0-5V Output Ethanol values from 5.2:1 to 11.0:1 AFR 0-5V Output Methanol values from 3.75:1 to 8.0:1 AFR Specs Sold in Quantity Kit Shape Round AFR Gauge Type Wideband Sending Unit Electrical Sending Unit Included Yes OEM Replacement No Gauge Sweep Digital Numeric GTIN Code 840879024437 MFG. Part # 30-0300 Reviews Looks and works great – good price Rated by RandyBMC on September 24, 2021 Summary: Installed with a Megasquirt on a turbo project. Works well. Options to use AEMs CANBUS, though I dont have that. Boost and AFR look great, are light and super compact. Pros: Fastest AFR on the market. Seems more reliable than the Innovate. Yes, I recommend this product. Repeat Buy for other cars Rated by Magnum on October 29, 2020 Summary: Fast reaction time looks really good Excellent Instructions Yes, I recommend this product. Related Items / Suggested Parts AEM 30-3459 Replacement Power/IO Harness for 30-0300 Tech Support We’re here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.

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