Zeitronix ECA-2 CAN Bus Ethanol Content Analyzer Kit

Zeitronix ECA-2 CAN Bus Ethanol Content Analyzer Kit - No Gauge inccluded

  • CAN Bus communication for easy connection and logging through other CAN Bus devices.
  • Two 0-5 V analog outputs: Ethanol % and Fuel Temperature for use with Dashes, ECUs, data loggers and engine management systems.
  • Optional real time E% Ethanol Content Gauge.
  • Error indication in event of signal absence from Flex Fuel Sensor
  • Connecting harness to Zeitronix Flow Through FLEX Fuel Sensor is included. Harness length is 8 ft (2.4m)
  • Made in the USA 

What's your ethanol percentage?
The ethanol content of E85 fuel can vary from 60% to 92% ethanol. A fill up with E85 can drastically change the mix of fuel in your vehicle. For performance drivers determining actual ethanol content of E85 is essential to maximizing an engine tune and horsepower.

Why know your ethanol percentage?
Higher octane fuel is more resistant to knock allowing for more aggressive ignition timing, higher compression and increased engine power over gasoline itself. The Zeitronix Ethanol Content Analyzer helps you get the most out of your engine and fuel.

What are the sizes of the flex fuel sensor inflow and outflow lines?
Zeitronix Flow Through Flex Fuel Sensor both tubes are 0.37" and 0.5" at the flange.

The usual mounting location for the sensor is the return fuel line Make sure the sensor is filled completely with fuel. 
A professional installation by a shop familiar with your vehicle and it's fuel system is required. Always check for fuel leaks!

ECA-2 CAN BUS Analog Outputs

Ethanol content and temperature analog outputs are available as part of the ECA-2 CAN BUS.  The flex fuel sensor does not provide these outputs.  We have created the ECA-2 CAN BUS to provide these outputs making use of E-85 easier with after market engine control modules and data logging systems.

Analog Outputs  Signal Range
Ethanol Percentage 0-5 Volts 0% to 100%
Fuel Temperature 0-5 Volts -40 to 125 °C (-40 to 257 °F) 


Ethanol % = 20 * Voltage  Fahrenheit Temp. = -40 + 59.4 * Voltage Celsius Temp. = -40 + 33 * Voltage

Flex fuel Sensor Technical Specification:

Measuring range: 0…100% Alcohol (ethanol) in fuel mixtures 
Sensor Accuracy: 5% of the mixture ratio 
Output characteristic:  Linear
Operating temperature: Environment -40°C… +125°C, Fuel -40°C… +90°C 
Maximum fuel pressure:  10 bar, (145 psi)
Maximum pressure drop:  0.1 bar, (1.45 psi) 
Maximum flow:   200 l/h 
Supply voltage:  6…18 Volts DC
Sensor Temperature error:  < 1.5% 
Response time:    < 250 ms after power on at any temperature
Design:   Suitable for the installation in motor vehicles, independent of position.  Housing is waterproof.    Always check for fuel leaks!


This kit is ideal when upgrading your car to a Flex Fuel or full time E85 set up on the factory ECU. The Zeitronix Flex Fuel sensor kit allows factory ECU/reflash tuning via EcuTek and other platforms. 


Supported CAN Bus Specifications:

User selectable CAN Bus Speed:
1Mbps, 500 Kbps, 250 Kbps, 125 Kbps

User selectable CAN Bus ID:
 Standard (11 bit) and Extended (29 bit)

User selectable CAN Bus address:
 Standard 0x0000 to 0x7FF
Extended 0x0000 to 0x7FFF

User selectable CAN Bus update rate:
 1ms (1000Hz) to 250ms (4 Hz)

120 ohm termination- None

Data 0 : E % = 8 bit 
Data 1 : Fuel Temperature (C) = 8 bit - 40
Data 7: FF Sensor Status
0x00 Sensor OK
0x01 Sensor fault

Brand Zeitronix
Shipping Weight 0.5000kg
Shipping Width 0.300m
Shipping Height 0.150m
Shipping Length 0.150m
Shipping Cubic 0.006750000m3

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