HomeAir and Fuel Delivery > SensorsStandard Ignition FFS2 Flex Fuel Sensor
Part #: FFS2

Standard Ignition FFS2 Flex Fuel Sensor

⚙️ 21 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mercury, and Mazda, Taurus, Sable, Ranger, Mountaineer, and B3000
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Overview of Standard Ignition Flex Fuel Sensor FFS2

The Standard Ignition Flex Fuel Sensor FFS2 is designed for precise fuel composition monitoring in select Ford, Mazda, and Mercury vehicles. This sensor ensures accurate detection of ethanol content, helping maintain optimal engine performance and emissions control.

  • Connector Gender: Female
  • Connector Quantity: 1
  • Connector Type: Plug in
  • Mounting Location: External
  • Terminal Gender: Male
  • Terminal Quantity: 3
  • Terminal Type: Blade

Detailed Product Description

The Standard Ignition FFS2 flex fuel sensor features a female plug-in connector with a single connection point, facilitating straightforward installation and reliable electrical contact. Its external mounting location allows for easy access during maintenance or replacement. The sensor terminals are male blade types, with three terminals ensuring proper signal transmission to the vehicle’s engine control unit. This sensor is engineered to work with specific Ford, Mazda, and Mercury models, including the Ford Explorer, Ranger, Mountaineer, and Taurus, as well as the Mazda B3000 and Mercury Sable.

Compatible Vehicles and Applications

This flex fuel sensor is compatible with the following vehicles:

  • Ford Explorer
  • Ford Ranger
  • Ford Mountaineer
  • Ford Taurus
  • Mazda B3000
  • Mercury Sable

It is designed to monitor ethanol fuel blends, providing the engine control module with accurate data to adjust fuel injection and ignition timing accordingly.

Common Issues Addressed by the FFS2 Flex Fuel Sensor

  • Incorrect fuel mixture readings causing poor engine performance
  • Check engine light triggered by faulty ethanol sensor signals
  • Reduced fuel efficiency due to inaccurate fuel composition data
  • Engine hesitation or stalling related to improper fuel blend detection
  • Emission control system malfunctions linked to sensor failure

Installation Notes and Tips

  • Ensure the vehicle ignition is off before installation
  • Locate the external mounting point on the fuel system for the sensor
  • Disconnect the female plug-in connector carefully to avoid damage
  • Verify the three male blade terminals align correctly with the vehicle harness
  • Secure the sensor firmly to prevent vibration or loosening

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications. The FFS2 flex fuel sensor undergoes rigorous testing to ensure durability and reliable performance under normal operating conditions. Warranty coverage details should be confirmed with the product documentation or authorized distributor.

BrandStandard Ignition
Part NumberFFS2
Connector GenderFemale
Connector TypePlug In
Mounting LocationExternal
Terminal GenderMale
Terminal TypeBlade

This part fits 21 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2006FordTaurus3.0LV6FLEXN/A
2005FordTaurus3.0LV6FLEXN/A
2004FordTaurus3.0LV6FLEXN/A
2004MercurySable3.0LV6N/A
2003FordRanger3.0LV6FLEXN/A
2003FordTaurus3.0LV6FLEXN/A
2002FordRanger3.0LV6FLEXN/A
2002FordTaurus3.0LV6FLEXN/A
2001FordExplorer4.0LV6N/A
2001FordRanger3.0LV6FLEXN/A
2001FordTaurus3.0LV6FLEXN/A
2001MercuryMountaineer4.0LV6N/A
2001MercurySable3.0LV6N/A
2000FordRanger3.0LV6FLEXN/A
2000FordTaurus3.0LV6FLEXN/A
2000MazdaB30003.0LV6FLEXN/A
1999FordRanger3.0LV6FLEXN/A
1999FordTaurus3.0LV6FLEXN/A
1998FordTaurus3.0LV6FLEXN/A
1997FordTaurus3.0LV6FLEXN/A
1996FordTaurus3.0LV6FLEXN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

2-900025S206171-359176457F6DF9C044AAFFS2FFSB10000FSA1500FFS

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.