Watch in action

Streamline Your EFI Diagnostics

The Holley EFI Bench-Top Test Harness is an indispensable tool for professional tuners, engine builders, and serious enthusiasts. This harness allows you to power up and communicate with your Holley EFI ECU outside of the vehicle, making it significantly easier to perform software updates, troubleshoot wiring issues, or configure sensor inputs in a controlled environment. By removing the ECU from the vehicle, you can focus on diagnostics without the constraints of the engine bay.

Professional Diagnostic Capabilities

• Bench-Top Testing: Safely power and test your ECU on a workbench.
• Simplified Troubleshooting: Isolate potential electrical faults away from the vehicle wiring.
• Software Updates: Easily flash new calibrations and firmware updates to your ECU.
• Durable Build: Constructed with high-quality materials to withstand frequent use in a shop environment.
• Compatibility: Designed specifically for Holley EFI systems to ensure reliable connectivity.

Whether you are setting up a new base map or diagnosing a persistent sensor issue, having the ability to bench-test your ECU saves valuable time and prevents frustration. This harness is a must-have for any shop specializing in high-performance engine management. Invest in the right tools to keep your build running at its best. Explore our full range of diagnostic equipment and wiring solutions at GGCRACING.