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Standard Ignition FFS3 Flex Fuel SensorOE Quality 60-Day Returns
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Part #: FFS3

Standard Ignition FFS3 Flex Fuel Sensor

⚙️ 130 vehicles fit this part
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🚗Fitment: Chevrolet, GMC, Buick, and Cadillac, Impala, Silverado 1500, Tahoe, Sierra 1500, Caprice, Equinox, Suburban, Terrain, Yukon, Yukon XL, LaCrosse, Impala Limited, Captiva Sport, Regal, ATS, and SRX
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Overview of Standard Ignition Flex Fuel Sensor FFS3

The Standard Ignition Flex Fuel Sensor FFS3 is designed for precise fuel composition monitoring in select GM vehicles. This sensor supports gas fuel types and is engineered to maintain optimal engine performance in Buick, Cadillac, Chevrolet, and GMC models.

  • Connector Gender: Female
  • Connector Quantity: 1
  • Connector Shape: Oval
  • Fuel Type: Gas
  • Port Quantity: 2
  • Terminal Gender: Male
  • Terminal Quantity: 3
  • Terminal Type: Blade

Detailed Product Description

The Standard Ignition FFS3 flex fuel sensor features a female oval connector with a single connection point, ensuring secure and reliable electrical contact. It includes two ports for accurate fuel mixture sampling and three male blade terminals for efficient signal transmission. Designed specifically for gasoline fuel systems, this sensor is compatible with a range of GM vehicles including the Buick LaCrosse, Cadillac ATS, Chevrolet Silverado 1500, and GMC Sierra 2500 HD among others. The sensor’s robust design supports consistent fuel quality detection, which is critical for engine management systems to adjust fuel injection and ignition timing accordingly.

Compatible Vehicles and Applications

This flex fuel sensor is compatible with the following makes and models:

  • Buick LaCrosse, Regal
  • Cadillac ATS, SRX
  • Chevrolet Caprice, Captiva Sport, Equinox, Express 2500/3500, Impala, Impala Limited, Silverado 1500/LTD, Silverado 2500 HD, Silverado 3500 HD, Tahoe, Terrain
  • GMC Savana 2500/3500, Sierra 1500, Sierra 2500 HD, Sierra 3500 HD, Yukon, Yukon XL

Common Issues Addressed by the FFS3 Flex Fuel Sensor

  • Inaccurate fuel mixture readings causing poor engine performance
  • Check engine light triggered by faulty fuel sensor signals
  • Reduced fuel efficiency due to improper fuel composition detection
  • Engine hesitation or stalling related to fuel sensor failure
  • Emission control problems linked to incorrect fuel data

Installation Notes and Tips

  • Ensure the vehicle ignition is off before installation
  • Disconnect the battery to prevent electrical shorts
  • Locate the existing flex fuel sensor on the fuel rail or intake manifold
  • Carefully disconnect the female oval connector and remove the old sensor
  • Install the new Standard Ignition FFS3 sensor, ensuring the blade terminals align correctly
  • Reconnect the connector securely and verify no loose connections
  • Clear any diagnostic trouble codes after installation

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications. The FFS3 flex fuel sensor undergoes rigorous testing to ensure durability and reliable performance under normal operating conditions. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in materials and workmanship for a specified period. Refer to the warranty documentation for detailed terms and conditions.

BrandStandard Ignition
Part NumberFFS3
Connector GenderFemale
Connector ShapeOval
Fuel TypeGas
Terminal GenderMale
Terminal TypeBlade

This part fits 130 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2024ChevroletSilverado 15005.3LV8FLEXN/A
2024ChevroletSilverado 2500 HD6.6LV8FLEXN/A
2024GMCSierra 2500 HD6.6LV8FLEXN/A
2024GMCSierra 3500 HD6.6LV8FLEXN/A
2023ChevroletSilverado 15005.3LV8FLEXN/A
2023ChevroletSilverado 2500 HD6.6LV8FLEXN/A
2023ChevroletSilverado 3500 HD6.6LV8FLEXN/A
2023GMCSierra 2500 HD6.6LV8FLEXN/A
2023GMCSierra 3500 HD6.6LV8FLEXN/A
2022ChevroletSilverado 1500 LTD5.3LV8FLEXN/A
2022ChevroletSilverado 2500 HD6.6LV8FLEXN/A
2022ChevroletSilverado 3500 HD6.6LV8FLEXN/A
2022GMCSierra 2500 HD6.6LV8FLEXN/A
2022GMCSierra 3500 HD6.6LV8FLEXN/A
2021ChevroletSilverado 15005.3LV8FLEXN/A
2021ChevroletSilverado 2500 HD6.6LV8FLEXN/A
2021ChevroletSilverado 3500 HD6.6LV8FLEXN/A
2021GMCSierra 2500 HD6.6LV8FLEXN/A
2021GMCSierra 3500 HD6.6LV8FLEXN/A
2020ChevroletImpala3.6LV6FLEXN/A
2020ChevroletSilverado 15005.3LV8FLEXN/A
2020ChevroletTahoe5.3LV8FLEXN/A
2020GMCYukon5.3LV8FLEXN/A
2020GMCYukon XL5.3LV8FLEXN/A
2019ChevroletImpala3.6LV6FLEXN/A
2019ChevroletSilverado 15005.3LV8FLEXN/A
2019ChevroletTahoe5.3LV8FLEXN/A
2019GMCYukon5.3LV8FLEXN/A
2019GMCYukon XL5.3LV8FLEXN/A
2018ChevroletExpress 25006.0LV8FLEXN/A
2018ChevroletExpress 35006.0LV8FLEXN/A
2018ChevroletImpala3.6LV6FLEXN/A
2018ChevroletSilverado 15004.3LV6FLEXN/A
2018ChevroletSilverado 15005.3LV8FLEXN/A
2018ChevroletTahoe5.3LV8FLEXN/A
2018GMCSavana 25006.0LV8FLEXN/A
2018GMCSavana 35006.0LV8FLEXN/A
2018GMCSierra 15004.3LV6FLEXN/A
2018GMCSierra 15005.3LV8FLEXN/A
2018GMCYukon5.3LV8FLEXN/A
2018GMCYukon XL5.3LV8FLEXN/A
2017ChevroletCapriceFLEXN/A
2017ChevroletEquinox2.4LL4FLEXN/A
2017ChevroletExpress 25006.0LV8FLEXN/A
2017ChevroletExpress 35006.0LV8FLEXN/A
2017ChevroletImpala3.6LV6FLEXN/A
2017ChevroletSilverado 15004.3LV6FLEXN/A
2017ChevroletSilverado 15005.3LV8FLEXN/A
2017ChevroletTahoe5.3LV8FLEXN/A
2017GMCSavana 25006.0LV8FLEXN/A
2017GMCSavana 35006.0LV8FLEXN/A
2017GMCSierra 15004.3LV6FLEXN/A
2017GMCSierra 15005.3LV8FLEXN/A
2017GMCTerrain2.4LL4FLEXN/A
2017GMCYukon5.3LV8FLEXN/A
2017GMCYukon XL5.3LV8FLEXN/A
2016BuickLaCrosse3.6LV6FLEXN/A
2016ChevroletCapriceFLEXN/A
2016ChevroletEquinoxFLEXN/A
2016ChevroletExpress 25006.0LV8FLEXN/A
2016ChevroletExpress 35006.0LV8FLEXN/A
2016ChevroletImpala3.6LV6FLEXN/A
2016ChevroletImpala Limited3.6LV6FLEXN/A
2016ChevroletSilverado 15004.3LV6FLEXN/A
2016ChevroletSilverado 15005.3LV8FLEXN/A
2016ChevroletTahoe5.3LV8FLEXN/A
2016GMCSavana 25006.0LV8FLEXN/A
2016GMCSavana 35006.0LV8FLEXN/A
2016GMCSierra 15004.3LV6FLEXN/A
2016GMCSierra 15005.3LV8FLEXN/A
2016GMCTerrainFLEXN/A
2016GMCYukon5.3LV8FLEXN/A
2016GMCYukon XL5.3LV8FLEXN/A
2015BuickLaCrosse3.6LV6FLEXN/A
2015ChevroletCapriceFLEXN/A
2015ChevroletCaptiva Sport2.4LL4FLEXN/A
2015ChevroletEquinoxFLEXN/A
2015ChevroletExpress 25006.0LV8FLEXN/A
2015ChevroletExpress 35006.0LV8FLEXN/A
2015ChevroletImpala3.6LV6FLEXN/A
2015ChevroletImpala Limited3.6LV6FLEXN/A
2015ChevroletSilverado 15004.3LV6FLEXN/A
2015ChevroletSilverado 15005.3LV8FLEXN/A
2015ChevroletTahoe5.3LV8FLEXN/A
2015GMCSavana 25006.0LV8FLEXN/A
2015GMCSavana 35006.0LV8FLEXN/A
2015GMCSierra 15004.3LV6FLEXN/A
2015GMCSierra 15005.3LV8FLEXN/A
2015GMCTerrainFLEXN/A
2015GMCYukon5.3LV8FLEXN/A
2015GMCYukon XL5.3LV8FLEXN/A
2014BuickLaCrosse3.6LV6FLEXN/A
2014BuickLaCrosse2.4LL4ELECTRIC/GASN/A
2014ChevroletCapriceFLEXN/A
2014ChevroletCaptiva Sport2.4LL4FLEXN/A
2014ChevroletEquinoxFLEXN/A
2014ChevroletExpress 25006.0LV8FLEXN/A
2014ChevroletExpress 35006.0LV8FLEXN/A
2014ChevroletImpala3.6LV6FLEXN/A
2014ChevroletImpala Limited3.6LV6FLEXN/A
2014ChevroletSilverado 1500FLEXN/A
2014ChevroletTahoe5.3LV8FLEXN/A
2014GMCSavana 25006.0LV8FLEXN/A
2014GMCSavana 35006.0LV8FLEXN/A
2014GMCSierra 1500FLEXN/A
2014GMCTerrainFLEXN/A
2013BuickLaCrosse3.6LV6FLEXN/A
2013BuickRegal2.0LL4FLEXN/A
2013CadillacATS3.6LV6FLEXN/A
2013CadillacSRX3.6LV6FLEXN/A
2013ChevroletCapriceFLEXN/A
2013ChevroletCaptiva Sport2.4LL4FLEXN/A
2013ChevroletEquinoxFLEXN/A
2013ChevroletExpress 25004.8LV8FLEXN/A
2013ChevroletExpress 35004.8LV8FLEXN/A
2013ChevroletImpala3.6LV6FLEXN/A
2013GMCSavana 25004.8LV8FLEXN/A
2013GMCSavana 35004.8LV8FLEXN/A
2013GMCTerrainFLEXN/A
2012ChevroletCapriceFLEXN/A
2012ChevroletCaptiva Sport3.0LV6FLEXN/A
2012ChevroletEquinox2.4LL4FLEXN/A
2012ChevroletExpress 25006.0LV8FLEXN/A
2012ChevroletExpress 35006.0LV8FLEXN/A
2012GMCSavana 25006.0LV8FLEXN/A
2012GMCSavana 35006.0LV8FLEXN/A
2012GMCTerrain3.0LV6FLEXN/A
2011BuickRegal2.0LL4FLEXN/A
2011ChevroletCaprice6.0LV8FLEXN/A
2011ChevroletEquinox3.0LV6FLEXN/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:

135774292-900035S1381176459800-750FFS3FFSA1FSA1203FFSSE1004SV51-72-0169

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

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