AEM Wideband UEGO Air/Fuel Controllers  (Wideband and Boost/Vacuum Gauge)

AEM Wideband UEGO Air/Fuel Controllers (Wideband and Boost/Vacuum Gauge)

AEM 30-4900

$445.80 $320.98
You save $124.82
SKU:
30-4900

AEM's Wideband Failsafe Gauge provides the ability to accurately tune AFR, while actively protecting your engine by constantly monitoring AFR curves and activating a user-defined failsafe strategy if it runs lean.

The Wideband Failsafe Gauge is a Universal Exhaust Gas Oxygen (UEGO—“you-way-go”) controller with an internal boost sensor, an internal data logger and a full color Organic Light Emitting Diode (OLED) display. It includes technology to activate a failsafe strategy in the event AFR falls outside of a user-defined operating window. If the AFR falls outside of the set operating window, the Wideband FAILSAFE Gauge triggers a user defined output function that can save an engine from catastrophic damage.

This gauge is a must have for all tuned performance engines, either forced induction or naturally aspirated, fuel injected or carbureted. Any high performance vehicle owners who want a highly accurate AFR tuning tool with internal data logging and a protection strategy that can save an engine from catastrophic failure will want this Failsafe device.

Features-

 

Since the Wideband Failsafe Gauge is a wideband AFR controller with an internal boost sensor (up to 29 PSIg), it is able to display AFR and either boost or vacuum in real time on a vibrant Organic LED screen. It also includes an on board data logger that records AFR, RPM* and boost/vacuum and can be downloaded and viewed in AEMdata analysis software. The gauge includes a low side output for triggering a failsafe strategy in the event AFR falls outside of the operating window, and an RPM input* to log RPM for tuning purposes.

The gauge’s failsafe strategy is completely user definable, from something as simple as making the gauge flash to using the ground output to trigger a check engine light, to cut boost, retard timing, or even switch to a safety map using a standalone engine management system.

The Wideband Failsafe Gauge’s software simplifies the interface set up. Choose displayed parameters (AFR, boost or vacuum) on the center OLED screen and bar graph, set the alarm flash mode and adjust the gauge’s lighting for a custom look, then install the correct faceplate to match your configuration (6 faceplates to choose from).

  • Bosch Wideband UEGO sensor and weld-in bung included
  • On-Board 3+ hour Datalogging capability at 20hz per parameter
  • Intuitive set up software (PC based with USB connectivity)
  • Interchangeable faceplates and bezels
  • No free air calibration required—ever
  • Data analysis using AEMdata software
  • AEMnet compatible
  • Standard 52mm gauge size

(*Please see important information regarding using the RPM input for the Wideband Failsafe Gauge on the "Specs" tab)

Specifications

 

WIDEBAND FAILSAFE GAUGE TECHNICAL FEATURES:

  • Displays both boost or vacuum and AFR or Lambda simultaneously on the same gauge
  • Internal boost sensor
  • Bosch Wideband UEGO sensor and weld-in bung included
  • On-Board 3+ hour Datalogging capability at 20hz per parameter (AFR/Lambda, Boost/Vacuum and RPM**)
  • Full color Organic Light Emitting Diode (OLED) Display in center, user selectable feature (boost/vacuum or AFR)
  • 24 three-color sweeping LEDs, user selectable feature (boost/vacuum or AFR)
  • Intuitive set up software
  • Dimmer input included
  • Interchangeable faceplates and bezels (see options, below)
  • No free air calibration required—ever
  • Data analysis using AEMdata software

WIDEBAND FAILSAFE GAUGE INSTALLATION FEATURES:

  • AEMnet compatible (CAN 2.0)
  • Differential AFR analog output
  • Differential boost analog output
  • Configurable RPM input for logging
  • One low-side driver output (Ground with 1.5 amp max draw)
  • Positive-lock connectors
  • Tunable PC-based software with USB connectivity
  • Time based reset for outputs

WIDEBAND FAILSAFE GAUGE FACEPLATE STYLES:

  • Kit comes with 6 different faceplates and black and silver bezels.
  • Black Vacuum only in sweeping LEDs
  • Black and White AFR in sweeping LEDs
  • Black and White Vacuum/Boost in sweeping LEDs
  • Black Lambda in sweeping LEDs

**IMPORTANT INFORMATION REGARDING USING THE RPM INPUT FOR THE WIDEBAND FAILSAFE GAUGE

The AEM Wideband Failsafe Gauge’s (WBFS) engine speed (RPM) input requires a clean square wave tachometer-type signal in order to log engine speed properly.

The voltage of this signal must NOT exceed 16V or go below vehicle ground (zero volts.)

Here are examples of signals that WILL NOT work and could cause damage to the gauge:

  • Crank sensors
  • Ignition coil primary (positive or negative terminal)
  • Injector signals

Here are examples of suggested RPM input configurations:

  • An MSD GMR Pickup (P/N #8918) connected to: coil primary (inductive or capacitive) or fuel injector*
  • An aftermarket multi-strike distributor tachometer output (for example: MSD-6AL, Crane Hi-6, etc.)
  • OEM tachometer signal (0-12V square wave—verification with an oscilloscope recommended)

*Note: Install the GMR Pickup as per MSD instructions; the GMR is generally installed on the “+” side of referenced signals.

If a signal’s waveform is unknown and cannot be verified with an oscilloscope, it’s safest to assume that the signal won’t work and could possibly damage the gauge. In these cases, it is suggested that the MSD GMR Pickup be utilized to pick up off of an ignition coil.

 

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