GM / Standalone 3-Pin Flex Fuel Sensor Connector Kit – Delphi Aptiv Gen 3 (Ethanol Content Sensor Plug)

Professional 3-Pin Flex Fuel Sensor Connector for EFI & Ethanol Conversions

This 3-Pin Flex Fuel Sensor Connector Kit is designed for ethanol content sensor applications across GM platforms and standalone EFI systems.

Built using the Delphi Aptiv Gen 3 connector family, this plug is commonly used on GM flex fuel sensors and widely adopted in aftermarket flex fuel conversions for Honda, LS, and standalone engine management builds.

Whether you're building a dedicated flex fuel harness or integrating ethanol content monitoring into a custom EFI system, this connector provides secure fitment, proper sealing, and reliable signal transmission.

Common Applications

This connector is commonly used for:

• GM flex fuel sensors
• Ethanol content sensor wiring
• Haltech flex fuel inputs
• FuelTech flex fuel installations
• Hondata flex fuel conversions
• Custom turbo and boosted applications
• Standalone ECU ethanol integration

Flex fuel systems rely on accurate frequency-based signal output. Proper terminal engagement and sealing are critical for stable ethanol content readings.

Connector Specifications

• Delphi Aptiv Gen 3 3-pin housing
• Available in black or brown housing (inventory dependent)
• Includes secondary locking mechanism
• Accepts 22–20 AWG open barrel terminals
• Sealed design for engine bay environments
• High-temperature resistant construction

Each kit includes:

• 1x 3-Pin Connector Housing
• 1x Secondary Lock
• 3x 22–20 AWG Terminals
• 3x Wire Seals

Everything required for professional harness installation.

Built for Real Flex Fuel Conversions

Flex fuel wiring is frequently added to:

• Turbo Honda builds
• LS swaps
• Street & track ethanol setups
• Standalone EFI systems
• High-horsepower street cars

This connector is selected for proper fitment and long-term durability in demanding engine environments.

VTI Standard

At VTEC Innovations, we supply connector kits used in our own flex fuel harness construction. These are selected for proper terminal retention, reliable sealing, and professional installation — not generic replacement plugs.

Built for ethanol.
Built for boost.
Built for real EFI integration.