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Zeitronix Ethanol Content
Analyzer
- Real time display of fuel ethanol content from 0% to 100%
- Displays fuel temperature in Fahrenheit and Celsius ranging from -40 to 125 °F (-40 to 52 °C)
- Two analog outputs: Ethanol % and Fuel Temperature for use with datalogging or engine management systems
- Surface mountable sleek aluminum enclosure with bright LED display visible even in direct sunlight
- A flex fuel sensor is required. The ECA is compatible with standard OEM sensors used in most vehicles with the flex fuel insignia or which run on E85.
-
Dimensions: 2.8 x 1.8 x 0.75 inches (71 x 46 x 19 mm)
- Made in the USA!
| ECA Installation Instructions | ECA YouTube Video | Order Now |
| Note: A flex fuel sensor is not included with purchase of the ECA. Sensors are standard components of many flex fuel vehicles or may be purchased separately at GM dealerships (GM part number 12568450 or 12570260). |
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?
E85 has the equivalent octane rating of 105 octane gasoline. 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.
Which vehicles have the flex fuel sensors?
A partial listing of vehicles with flex fuel sensors is listed below. Newer vehicles with the capability for using E85 also use flex fuel sensors. Check for sensors with the following part numbers: 12568450 or 12570260. A picture of the sensor is given to the right and dimensions of the sensor are also given below.
What are the sizes of the flex fuel sensor inflow
and outflow lines?
Flex fuel sensor tube sizes are as follows:
Larger (outflow) tube: .37" and .5" at the
flange.
Smaller (inflow) tube: .31" and .44" at the
flange.
The usual mounting location for this sensor is the return fuel line.
Analog Outputs
Ethanol content and temperature analog outputs are both linear outputs.
| 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 |
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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. Flex fuel sensor Dimensions are given below. |
Vehicles with GM flex fuel sensors compatible with the Zeitronix Ethanol Content Analyzer:
|
Trucks with an E85 Flex-Fuel Option: |
|
| 1999-2000 | Ford 3.0L Ranger Supercab 4WD |
| 1999-2003 | Ford 3.0L Ranger Supercab 2WD |
| 1999-2003 | Mazda 3.0L B3000 pickups |
| 2000-2002 | Ford 3.0L Ranger 4x2 extended cab pickups |
| 2000-2002 | GM 2.2L Chevy S-10 2WD pickups |
| 2000-2002 | GMC 2.2L Sonoma 2WD pickups |
| 2000-2002 | ISUZU 2.2L Hombre pickup |
| 2000-2005 | GMC 5.3L V-8 Sierra half-ton pickups 2WD & 4WD |
| 2000-2005 | GMC 5.3L V-8 Silverado pickups |
| 2003 | Chevrolet 5.3L Avalanche 4-door pickups |
| 2004-2005 | Dodge 4.7L Ram 1500 series |
| 2005 | GMC 5.3L (Vortec) Avalanche |
| 2005 | Nissan 5.6L V8 DOHC |
| Minivans with an E85 Flex-Fuel Option: | |
| 1998-2003 | Chrysler 3.3L Town & Country minivans |
| 1998-2003 | Plymouth/Chrysler Voyager minivans, 3.3L |
| 1998-2005 | Dodge 3.3L Caravan & Grand Caravan SE minivans |
| 2003 | Dodge 3.3L Cargo minivans (all) |
| Passenger Cars with an E85 Flex-Fuel Option: | |
| 1999-2001 | Ford 3.0L Taurus LX, SE, and SES sedans |
| 2000-2004 | Mercury 3.0L Sable (look for Road & Leaf logo) |
| 2002-2004 | Ford 3.0L Taurus sedan and wagon |
| 2003-2004 | Chrysler 2.7L Stratus sedans (all) |
| 2003-2005 | Chrysler 2.7L Sebring sedans (all) |
| 2003-2005 | Mercedes 3.2L C320 sport sedan and wagon |
| 2004-2005 | Ford 3.0L Taurus sedan and wagon (2 valve) |
| 2005 | Mercedes 2.6L C240 sedan and wagon (all) |
| Sports Utility Vehicles with an E85 Flex-Fuel Option: | |
| 2001-2002 | Ford 4.0L Explorer, 2-door (early 2002) |
| 2002 | 4.0L Explorer Sports 2-door |
| 2002 | 4.0L Explorer Sport Trac |
| 2002-2005 | Mercury 4.0L Mountaineer |
| 2002-2005 | GM 5.3L (vortec) Suburban SUVs (all) |
| 2002-2005 | GM 5.3L (vortec) Tahoe SUVs (all) |
| 2002-2005 | Ford 4.0L Explorer, 4-door |
| 2004-2005 | Ford 4.0L Explorer Sport Trac |
| Fleet 2005 GM 5.3L (vortec) Tahoe police package | |
| 2002 | GM 5.3L (vortec) Denalis (all) |
| 2002-2005 | GM 5.3L (vortec) Yukon & Yukon XL SUVs (all) |
Where is the sensor located?
The sensor is mounted as part of the fuel line. Below is a partial list of vehicles and locations to find the sensor.
| 2000 - 2002 | Chevy S-10 2.2L | Passenger side, front frame rail, behind wheel well |
| 2000 - 2002 | GMC Sonoma 2.2L | Passenger side, front frame rail, behind wheel well |
| 2003 | Chevy S-10 2.2L | Passenger side, front frame rail, behind wheel well |
| 2003 | GMC Sonoma 2.2L | Passenger side, front frame rail, behind wheel well |
| 2002 - 2005 | Chevy (Trucks, Suburban, Tahoe) 5.3L | Mounted to frame directly under driver’s feet |
| 2002 - 2005 | GMC (Trucks, Yukon, Tahoe) 5.3L | Mounted to frame directly under driver’s feet |
