Dual Wideband Air Fuel Gauge

Dual Wideband Air Fuel Gauge

AEM’s X-Sequence Wideband UEGO Air/Gasoline Ratio Sensor Controller Gauges are constructed upon distinctive, patent-pending X-Digital know-how that makes them the quickest responding wideband air/fuel ratio controllers in independent testing towards 17 different wideband UEGO air/fuel controllers*.

The X-Sequence Wideband UEGO AFR Sensor Controller Gauge (PN 30-0300) measures 2 1/16th-inch (52mm) in diameter, and incorporates a modern, visually putting faceplate and new seven-phase middle display that's 87% larger than the 30-4110 AEM Wideband Gauge’s middle display. This creates the perception of a larger general gauge, however in a typical 52mm size for straightforward mounting. Its slim depth (lower than one inch general) and extremely slim cup depth of .200-inches dramatically will increase its software base and potential mounting locations.

The X-Sequence Wideband UEGO AFR Gauge has a user configurable display through buttons on the gauge face that allow you to change AFR values for different fuels, Lambda or O2%, change the middle display to three or 4 digits, perform a free-air calibration if desired as the sensor ages, and change the CAN message ID when linking a number of X-Sequence Inline Controllers or X-Sequence Controller Gauges. A black bezel and black dual-confronted faceplate for air/fuel and Lambda are included, and an optionally available silver bezel with white dual-confronted Dual Wideband Air Fuel Gauge and Lambda faceplate is available (PN 30-0300-ACC, sold separately). An Auto Dimming characteristic is included. Locking connectors ensure a positive connection between the harnesses and gauge and a brand new single board design adds to the brand new gauge’s durability.

The gauge features a zero-5v and RS232 Serial Port output for suggestions control and data logging, and an AEMnet (CANbus) output for data logging. AEMnet allows additional X-Sequence Wideband Controllers to be daisy chained collectively (as much as 16 cylinders) for recording AFR in a number of cylinders. It helps automobile/system voltages as much as 16V, and can be used on EFI or carbureted applications, and dynamometers in applications utilizing gasoline, methanol, ethanol, Diesel, propane and CNG.

X-Digital Technology

X-Digital wideband know-how provides these controllers the flexibility to learn and report values that different controllers don't, which might ship more optimized engine tuning and a safer general operating condition. The controller’s high speed digital implementation ensures no lack of sign fidelity and full transient response, making it able to identify the slightest fluctuations in AFR and output them in full value.

Why Does Response Time Matter?

Sooner response time improves wideband suggestions control, and can present a safer, more highly effective and accurate tune. AEM’s Wideband Controllers with X-Digital know-how can reduce deadtime and enhance the performance of your automobile by more accurate AFR tuning. Deadtime is the delay between when exhaust gasoline composition modifications and when that change is reported by the O2 sensor. Whereas circulate of exhaust gases (transport delay) can have an effect on deadtime, it is not the one source. Often, the sensing components response to the gasoline is the most important contributor to deadtime when an engine is in high RPM below load.

When tuning an engine utilizing wideband AFR suggestions control on an inertia dyno, deadtime affects the information you are looking at as a result of it is reported in a special operating location than when it really occurred. This means with lengthy deadtimes, no matter modifications you make to the base fueling will likely be within the incorrect location. This can be particularly harmful to high compression and high-boost forced induction vehicles, and EFI methods that use suggestions control to auto tune.

Reducing deadtime improves wideband suggestions control, and can present a safer, more highly effective and accurate tune. AEM’s Wideband Controllers with X-Sequence digital know-how can reduce deadtime and enhance the performance of your automobile by more accurate AFR tuning.

Manufacturing unit Calibration Resistor or Free Air Output
The X-Sequence Wideband Gauge and X-Sequence Inline Controller assist the popular Bosch 4.9LSU sensor and can utilize each the manufacturing unit calibration resistor and free-air calibration methods**. This enables customers to benefit from the exact manufacturing unit resistor calibration when a sensor is new however then allows totally free-air calibrations if the user wishes when the sensor ages. It’s the perfect marriage of simplicity and accuracy!

What Is A Wideband??

AEM's Wideband UEGO (Universal Exhaust Gas Oxygen, pronounced “You-Manner-Go”) Controllers are highly effective, cost effective tuning tools that permit customers to accurately monitor the Air/Gasoline Ratio (AFR) of their engine.

Why Use A Wideband??

Correct AFR data is critical when tuning an engine. Working wealthy (very low air/fuel ratio, extreme fuel) may cause a loss in energy, whereas working too lean (very high Dual Wideband Air Fuel Gauge ratio, not sufficient fuel) could result in critical engine damage. Using a wideband air/fuel controller in the course of the tuning course of means that you can monitor AFR and regulate tuning parameters to optimize them for maximum energy and efficiency. AEM has a comprehensive line of highly accurate, reliable wideband air/fuel controllers that can help ensure your automobile is optimally tuned.


  • X-Sequence Wideband UEGO AFR Controller Gauge had been quickest responding wideband air/fuel ratio controllers in an independent test vs. 17 competitor wideband AFR controllers
  • Includes Bosch 4.9LSU wideband UEGO sensor
  • Manufacturing unit calibrated resistor does not require free-air calibration, however know-how allows totally free-air calibration as sensor ages if user wishes
  • Compatible with automobile/system voltages as much as 16V
  • zero-5V & RS232 output for data logging and suggestions control, AEMnet (CANbus) for data logging and daisy-chaining a number of controllers as much as 16 cylinders
  • Can display AFR values in hundredths of %
  • 52mm gauge diameter and slim 0.825” gauge depth
  • Gauge cup depth solely .200” deep!
  • Auto dimming characteristic
  • User configurable display through buttons on the gauge face for changing AFR values, Lambda and O2%, and 3- or 4-digit display
  • Black bezel and black dual confronted faceplate included (gauge solely, silver bezel/white gauge choice sold separately, PN 30-0300-ACC)
  • Locking connectors