ECA

Zeitronix - Your Ultimate Tuning Partner

Award Winning 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!

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.

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

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

What are the sensor dimensions?
Units are in millimeters.

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