AEM is very proud to announce the release of its Flex Fuel Wideband FAILSAFE Gauge (PN 30-4910 w/o Ethanol Content Sensor; PN 30-4911 w/ Ethanol Content Sensor). It displays Air/Fuel Ratio, Boost/Vacuum and Ethanol Content, and can actively protect your engine from damage if it runs lean or excessively rich. You can check out other AEM Electronics here.
The 52mm (2-1/16”) Flex Fuel Wideband FAILSAFE Gauge includes a Bosch 4.2LSU AFR wideband sensor for monitoring and feedback of AFR, and an on-board boost sensor to read vacuum or boost pressures up to 29 PSI. It is available with or without an ethanol content sensor for users who may already have one (PN 30-4910 no sensor, PN 30-4911 includes sensor). An internal data logger is included to capture approximately 2.5 hours of data on a loop, and includes two analog outputs for logging AFR, Boost/Vacuum and any triggered alarms. The gauge also includes a low side output for triggering a failsafe strategy in the event AFR falls outside of the operating window (see example strategies, below).
This product is a must-have for all tuned performance engines who use Ethanol-based fuels such as E85, either forced induction or naturally aspirated. This gauge will appeal to high performance drivers who want an accurate AFR tuning tool with integrated logging and the ability save the engine from catastrophic failure.
Vibrant Organic LED Display
The Flex Fuel Wideband Gauge features a vibrant Organic LED (OLED) center readout that can be user-programmed to display AFR/Lambda and Ethanol Content, Boost/Vacuum and Ethanol Content, or a single input of either AFR/Lambda or Boost/Vacuum. The 24 sweeping outer LED ‘needles’ can be programmed to display AFR or Boost/Vacuum, and corresponding faceplates are included for matching the inputs to the proper display layout. A silver bezel is also included to further customize the look of the gauge’s display face.
- 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
Specific Features:
- Can display AFR/Lambda, Boost/Vacuum and Ethanol Content simultaneously on the gauge face!
- Internal boost sensor (29 PSI)
- Bosch 4.2LSU Wideband UEGO sensor and weld-in bung included
- Available with or without an ethanol content sensor
- On-Board data logging (AFR & Boost/Vacuum) with analysis using FREE AEMdata software
- Full color center Organic Light Emitting Diode (OLED) display is user selectable (Boost/Vacuum and Ethanol Content, AFR/Lambda and Ethanol Content or only Boost/Vacuum or AFR/Lambda)
- 24 three-color sweeping LEDs, user selectable colors (Boost/Vacuum or AFR/Lambda)
- Intuitive set up software
- Dimmer input included
- Interchangeable faceplates and bezels
- Standard 52mm (2-1/16th) diameter fits most gauge pods
What is Does
After the engine is tuned and a safe operating window of AFR is established, the Flex Fuel Wideband FAILSAFE Gauge continuously monitors AFR/Lambda and Boost/Vacuum to make sure that AFRs do not fall out of a user defined operating window. If it detects an out of range AFR reading, the gauge triggers a low side output (ground signal with a 1.5 amp draw max) that can save your engine from catastrophic damage (see example strategies, below).
Easy Set-Up
The gauge’s intuitive software makes installation and configuration simple and stress-free. Setting AFR boundary limits, creating a user-adjustable time delay strategy to prevent false alarms, customizing the gauge lighting and configuring the LED displays are all performed using the software via a USB connection.
On-Board Data Logger
The gauge’s on-board data logger stores approximately 2.5 hours of data (20 Hz per parameter) of AFR, Boost/Vacuum and Alarm events. Data logs can be downloaded for viewing in FREE AEMdata software, which includes video encoding to overlay data onto your videos. Users with AEMnet-equipped (CAN bus) devices can daisy chain the Flex Fuel Wideband FAILSAFE gauge using the AEMnet connection (adapter sold separately). Non AEMnet-equipped devices can communicate with the gauge using the CAN 2.0B spec protocol. An analog output for O2 feedback is also provided for 3rd party engine management systems, or logging with a stand-alone 3rd party data logger.
Engine Protection Strategies
(NATURALLY ASPIRATED, TURBOCHARGED OR SUPERCHARGED WITH STAND ALONE EMS OR PIGGYBACK CONTROLLER)
The above can use the low side output to cut revs, retard timing, trigger a separate fuel or ignition map and activate an ancillary warning light. Users with turbos can also trigger the device to cut boost (may require separate solenoid). The aforementioned strategies are provided as an example. Available failsafe strategies will ultimately be dependent on the capability of the EMS or piggyback engine controller.
