Aem Air Fuel Ratio Gauge Install

Aem Air Fuel Ratio Gauge Install

AEM’s X-Series Wideband UEGO Air/Gasoline Ratio Sensor Controller Gauges are constructed upon unique, patent-pending X-Digital expertise that makes them the fastest responding wideband air/gasoline ratio controllers in impartial testing against 17 different wideband UEGO air/gasoline controllers*.

The X-Series Wideband UEGO AFR Sensor Controller Gauge (PN 30-0300) measures 2 1/sixteenth-inch (52mm) in diameter, and includes a trendy, visually putting faceplate and new seven-phase middle show that is 87% bigger than the 30-4110 AEM Wideband Gauge’s middle display. This creates the perception of a larger total gauge, however in a typical 52mm dimension for simple mounting. Its slim depth (less than one inch total) and extremely slim cup depth of .200-inches dramatically will increase its utility base and potential mounting locations.

The X-Series Wideband UEGO AFR Gauge has a user configurable show via buttons on the gauge face that will let you change AFR values for various fuels, Lambda or O2%, change the center show to three or four digits, carry out a free-air calibration if desired because the sensor ages, and alter the CAN message ID when linking multiple X-Series Inline Controllers or X-Series Controller Gauges. A black bezel and black dual-confronted faceplate for air/gasoline and Lambda are included, and an optional silver bezel with white dual-confronted Aem Air Fuel Ratio Gauge Install and Lambda faceplate is accessible (PN 30-0300-ACC, offered separately). An Auto Dimming characteristic is included. Locking connectors ensure a constructive connection between the harnesses and gauge and a brand new single board design provides to the new gauge’s durability.

The gauge features a 0-5v and RS232 Serial Port output for feedback control and data logging, and an AEMnet (CANbus) output for data logging. AEMnet permits additional X-Series Wideband Controllers to be daisy chained collectively (up to 16 cylinders) for recording AFR in multiple cylinders. It helps 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 expertise provides these controllers the flexibility to read and report values that different controllers do not, which may ship more optimized engine tuning and a safer total operating condition. The controller’s high speed digital implementation ensures no lack of signal fidelity and full transient response, making it in a position to determine the slightest fluctuations in AFR and output them in full value.

Why Does Response Time Matter?

Quicker response time improves wideband feedback control, and can present a safer, more powerful and correct tune. AEM’s Wideband Controllers with X-Digital expertise can cut back deadtime and improve the efficiency of your vehicle by more correct AFR tuning. Deadtime is the delay between when exhaust fuel composition changes and when that change is reported by the O2 sensor. Whereas flow of exhaust gases (transport delay) can have an effect on deadtime, it isn't the one source. Usually, the sensing parts response to the fuel is the most important contributor to deadtime when an engine is in high RPM below load.

When tuning an engine using wideband AFR feedback control on an inertia dyno, deadtime impacts the information you are looking at as a result of it's reported in a special operating location than when it really occurred. This implies with long deadtimes, no matter changes you make to the base fueling will seemingly be in the improper location. This may be particularly harmful to high compression and high-increase forced induction autos, and EFI systems that use feedback control to auto tune.

Reducing deadtime improves wideband feedback control, and can present a safer, more powerful and correct tune. AEM’s Wideband Controllers with X-Series digital expertise can cut back deadtime and improve the efficiency of your vehicle by more correct AFR tuning.

Factory Calibration Resistor or Free Air Output
The X-Series Wideband Gauge and X-Series Inline Controller assist the favored Bosch 4.9LSU sensor and can make the most of both the factory calibration resistor and free-air calibration methods**. This allows users to take advantage of the exact factory resistor calibration when a sensor is new however then permits without spending a dime-air calibrations if the user wishes when the sensor ages. It’s the proper marriage of simplicity and accuracy!

What Is A Wideband??

AEM's Wideband UEGO (Common Exhaust Gasoline Oxygen, pronounced “You-Method-Go”) Controllers are powerful, cost efficient tuning instruments that allow users to accurately monitor the Air/Gasoline Ratio (AFR) of their engine.

Why Use A Wideband??

Accurate AFR data is vital when tuning an engine. Working wealthy (very low air/gasoline ratio, excessive gasoline) may cause a loss in energy, whereas running too lean (very high Aem Air Fuel Ratio Gauge Install ratio, not enough gasoline) could lead to critical engine damage. Using a wideband air/gasoline controller in the course of the tuning course of allows you to monitor AFR and regulate tuning parameters to optimize them for max energy and efficiency. AEM has a comprehensive line of extremely correct, dependable wideband air/gasoline controllers that can help ensure your vehicle is optimally tuned.


  • X-Series Wideband UEGO AFR Controller Gauge had been fastest responding wideband air/gasoline ratio controllers in an impartial test vs. 17 competitor wideband AFR controllers
  • Consists of Bosch 4.9LSU wideband UEGO sensor
  • Factory calibrated resistor doesn't require free-air calibration, however expertise permits without spending a dime-air calibration as sensor ages if user wishes
  • 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 show AFR values in hundredths of %
  • 52mm gauge diameter and slim 0.825” gauge depth
  • Gauge cup depth only .200” deep!
  • Auto dimming characteristic
  • Person configurable show via buttons on the gauge face for altering AFR values, Lambda and O2%, and 3- or four-digit show
  • Black bezel and black dual confronted faceplate included (gauge only, silver bezel/white gauge option offered separately, PN 30-0300-ACC)
  • Locking connectors