Product Details
Overview
Overview
Professional-grade replacement connector for Delphi 3-pin GM style MAP sensors, essential for maintaining reliable pressure readings in EFI conversions and Haltech installations. This orange-coded connector ensures proper sensor integration when retrofitting GM MAP sensors or replacing damaged original connectors in LS swaps, truck builds, and forced induction applications.
Technical Specifications
- Part Number: HT-030420
- Connector Type: Delphi 3-pin GM Style
- Wire Gauge Compatibility: Standard automotive wire (typically 18-20 AWG)
- Colour Coding: Orange identification
- Contact Material: Corrosion-resistant terminals
- Application: GM style MAP sensors
Why You Need This
MAP sensor connectivity is critical for accurate manifold pressure readings, yet it's often overlooked until you're mid-install with a damaged or missing connector. GM's Delphi 3-pin MAP sensors are incredibly popular in aftermarket builds—they're reliable, affordable, and well-supported by Haltech ECUs. However, the original connectors frequently suffer damage during engine swaps, particularly in LS conversions where you're adapting GM sensors to non-GM harnesses.
Without proper connection integrity, you'll face erratic pressure readings, poor idle quality, and boost control issues that can mask themselves as tuning problems. The orange colour coding matches GM's factory identification system, crucial for maintaining professional standards in customer builds and ensuring future serviceability. This connector is particularly valuable for workshop builds where you're creating custom engine harnesses or repairing damaged sections of existing looms.
ECU & System Compatibility
Compatible with the full Haltech Elite and Nexus range when used with appropriate GM style MAP sensors. Works seamlessly with Elite 550, 750, 1000, 1500, 2000, and 2500 ECUs, as well as Nexus R3 and R5 systems. The standardised Delphi connector format ensures reliable integration across all Haltech platforms that support analogue pressure sensor inputs.
What's in the Box
- Delphi 3-pin GM style connector housing (orange)
- 3x professional-grade electrical terminals
- Terminal retention clips
Complete Your Build
Most customers building custom harnesses also require quality automotive wire, heat shrink tubing, and proper crimping tools for professional installations. Our technical team can recommend the complete wiring package for your specific build requirements, whether you're completing an LS swap, building a custom turbo setup, or creating a standalone engine harness. All items held in UK stock for immediate despatch, with expert pre-sales advice available to ensure you get the right components first time.



