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- Manuals
- 1
- Languages
- EN
- Last added
- 2026-10-01
Featured Holley manuals
Holley 199R10555 HP EFI and Dominator EFI Systems Wiring Manual
This wiring manual gives detailed information and diagrams for installing and wiring Holley HP and Dominator EFI systems. It covers proper grounding, sensor wiring, connector pinouts, and power distribution for a clean and reliable electrical system.
Key sections include ECU installation and pinouts, main harness layout, primary sensor connections (TPS, MAP, CTS, etc.), primary outputs such as IAC and injectors, ignition system wiring, programmable I/O, and specialized systems like nitrous, water/methanol injection, and electronic transmission wiring.
Covers: Manual Overview · Important Wiring Do's and Don'ts · ECU Installation, Connectors, and Pinout · Main Harness · Primary Sensors · Primary Outputs
Latest Holley manuals
Holley 199R10555 HP EFI and Dominator EFI Systems Wiring Manual
User Manual 47 pages · 9.9 MB · ENThe Holley wiring manual provides diagrams and instructions for wiring HP and Dominator EFI systems, covering sensors, connectors, and outputs.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Holley manuals
What type of USB connector is used on the HP and Dominator ECUs?
Both ECUs use a common mini USB connector.
From: Holley 199R10555 HP EFI and Dominator EFI Systems Wiring Manual
How many injector outputs does the J1B connector provide?
The J1B connector provides eight injector outputs.
From: Holley 199R10555 HP EFI and Dominator EFI Systems Wiring Manual