The Continental flex fuel sensor measures the ethanol-gasoline ratio of the fuel being used in a flexible fuel vehicle. Flexible fuel vehicles can be operated with a blend of ethanol and gasoline, up to 85 percent ethanol. In order to adjust the ignition timing and the fuel quantity to be injected, the engine management system requires information about the percentage of ethanol in the fuel.

The flex fuel sensor uses quick-connect style fuel connections, an incoming fuel connection, and an outgoing fuel connection. All fuel passes through the flex fuel sensor before continuing on to the fuel rail. The flex fuel sensor measures the fuel alcohol content, and sends an electrical signal to the engine control module (ECM) to indicate ethanol percentage.

The flex fuel sensor has a three-wire electrical harness connector. The three wires provide a ground circuit, a power source, and a signal output to the ECM. The power source is battery positive voltage and the ground circuit connects to an engine ground. The signal circuit carries the ethanol percentage via a frequency signal to the ECU.

The fuel composition sensor uses a microprocessor inside the sensor to measure the ethanol percentage and changes the output signal accordingly. The signal circuit carries the ethanol percentage via the frequency signal. The ECM provides an internal pull up to 5V on the signal circuit, and the fuel composition sensor pulls the 5V to ground in pulses. The normal range of operating frequency is between 50-150Hz. The microprocessor inside the sensor is capable of a certain amount of self-diagnosis. An output frequency between 180Hz and 190Hz indicates that the fuel is contaminated.

Specs:
Inlet Size: 3/8" Quick-connect
Outlet Size: 3/8" Quick-connect

Wiring:
Pin 1 - Battery Positive Voltage
Pin 2 - Ground
Pin 3 - Fuel Composition Sensor Signal Out

Options:
-Optional Connector Pigtail plugs into sensor.
-Optional Expansion Flex Pigtail plugs into ECU's expansion port and includes 8 ft ground, and signal wires. 
-Trim wires to preferred length and connect the two pigtails together and add key on 12v for a complete plug and play wiring solution. If you're purchasing coil on plug kit or expansion flying lead harness, you just need the wiring pigtail option and not the expansion flex pigtail option.

Perfect for use with PiMPx, PiMPxs, PiMPshift, original PiMP, Microsquirt, Megasquirt, or other flex fuel capable ECU's. 


Write a review

Please login or register to review

Sensor | Fuel Composition | Flex Fuel | Ethanol Content

  • $89.99
  • $79.99


Available Options


Related Products

PiMPx Standalone Engine Management (Batch Fire EFI)

PiMPx Standalone Engine Management (Batch Fire EFI)

-For Factory Equipped Batch Fire EFI Applications (83-95 2.3 Mustangs/Rangers, 85-95 Speed Density F..

$869.99 $899.99

PiMPxs Standalone Engine Management (Sequential EFI)

PiMPxs Standalone Engine Management (Sequential EFI)

-For Factory Equipped Sequential EFI Applications (86-95 V8 Mustangs, 94-95 Mass-Air V8 F-Series/Bro..

$969.99 $1,059.99

Microsquirt Plug & Play Standalone Engine Management + Harness | 2.3L | Entry Level

Microsquirt Plug & Play Standalone Engine Management + Harness | 2.3L | Entry Level

Microsquirt is an entry-level ECU designed to control a wide array of applications. In this applicat..

$649.99 $699.99

Wideband | Spartan 2 | o2 Sensor Controller Kit

Wideband | Spartan 2 | o2 Sensor Controller Kit

DISCONTINUED - REPLACEMENT IS THE SPARTAN 3 LITE V2  DO NOT ORDER FROM THIS LISTING, ..

$139.99

Boost Control | Solenoid | Electric | Pierburg

Boost Control | Solenoid | Electric | Pierburg

Genuine Pierburg Solenoid intended to be used with our PiMP | PiMPx | PiMPxs | PiMPxshift & Micr..

$49.99 $64.99

PiMPxshift Standalone Powertrain Management with Transmission Control (Sequential or Batch EFI)

PiMPxshift Standalone Powertrain Management with Transmission Control (Sequential or Batch EFI)

-For Factory Equipped EFI Applications with AOD-E, 4R70W, or E4OD Transmission (F-Series, SN95 Musta..

$1,399.99 $1,529.99

Sensor | Ford | ACT | Air Charge Temperature

Sensor | Ford | ACT | Air Charge Temperature

Ford Air Charge Temperature (ACT) sensor. Use when adding PiMP, PiMPx, PiMPxs, or PiMPxshift ECU to ..

$19.95

Sensor | Ford | TPS | 2.3 | Throttle Position Sensor | Adjustable | 83-85

Sensor | Ford | TPS | 2.3 | Throttle Position Sensor | Adjustable | 83-85

Ford Adjustable Throttle Position Sensor for many early to mid 80's applications with the large 4-pi..

$36.95 $39.95

PiMPxs Engine Management + CAS + COP Kit | Sequential EFI | V8

PiMPxs Engine Management + CAS + COP Kit | Sequential EFI | V8

-For Factory Equipped Sequential EFI Applications (86-95 Mustangs, 94-95 Mass-Air F-Series/Bronco) ..

$2,019.99 $2,229.99

PiMPxshift w/ Transmission Control  + CAS + COP Kit | Sequential or Batch EFI | V8

PiMPxshift w/ Transmission Control + CAS + COP Kit | Sequential or Batch EFI | V8

-For Factory Equipped Sequential or Batch Fire EFI Applications with E4OD or 4R70W Transmission (86-..

$2,499.99 $2,699.99

PiMPxs Engine Management + CAS + COP Kit | Sequential EFI | 4 Cyl

PiMPxs Engine Management + CAS + COP Kit | Sequential EFI | 4 Cyl

For Factory 4 Cylinder Batch Fire Applications that want to convert to Sequential EFI (Inj..

$1,749.99 $1,829.99

Sensor | Ford | ECT | Engine Coolant Temperature

Sensor | Ford | ECT | Engine Coolant Temperature

Ford Engine Coolant Temperature  (ECT) sensor for 80's to mid 90's Fords. If your engine seems ..

$19.95

Microsquirt Plug & Play Standalone | 2.3L Ford | Harness Only

Microsquirt Plug & Play Standalone | 2.3L Ford | Harness Only

This is for people who purchased a Microsquirt ECU before they were aware of our plug and play kit a..

$334.99 $349.99

Sensor | Ford | TPS | 2.3 | Throttle Position Sensor | Adjustable | 85-89

Sensor | Ford | TPS | 2.3 | Throttle Position Sensor | Adjustable | 85-89

Ford Throttle Position Sensor for many mid to late 80's applications with the small round 3-pin TPS ..

$48.99 $52.95

Wideband | Spartan 3 | o2 Sensor Lambda Controller Kit | ADV Sensor

Wideband | Spartan 3 | o2 Sensor Lambda Controller Kit | ADV Sensor

Go twice as fast! With a response time of just 10ms, Spartan 3 is more than twice as fast as any Wid..

$229.99 $239.99

Wideband | Spartan 3 Lite V2 | o2 Sensor Lambda Controller Kit | LSU 4.9 Sensor

Wideband | Spartan 3 Lite V2 | o2 Sensor Lambda Controller Kit | LSU 4.9 Sensor

Go twice as fast! With a response time of just 7ms, Spartan 3 Lite V2 is more than twice as fast as ..

$132.50 $135.99

Wideband | Spartan 3 Lite V2 | Controller Only (Replacement)

Wideband | Spartan 3 Lite V2 | Controller Only (Replacement)

Controller requires wideband sensor so this listing is for replacing a failed Spartan 3 Lite or Spar..

$79.99 $82.50

Tags: Fuel, Composition, E85, E-85, Ethanol, Flex, Sensor, GM, SE1004, Continental, 13577429, PiMPx, PiMPxs, PiMPxshift, PiMP, Megasquirt, Microsquirt