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HP EFI ECU with Power Harness, Main Harness, Coil Harness, Injector Harness and Sensors includes NTK Oxygen Sensor (Does not include Ti-VCT Controller or Harnesses)

Complete system requirements: Coyote Ti-VCT Control Module 554-145; and the sub-harness for your engine, 2011-2012 Coyote Engines use 558-124, 2013+ Coyote Engines use 558-125. Designed to be used with a cable driven throttle body.

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SKU: 175443


Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI! Do you have a coyote crate engine going in your dream car? Is your weekend road race warrior powered by a coyote junkyard engine with locked cams? Unlock the full potential of your high revving power plant with the Holley EFI Plug and Play Coyote Ti-VCT Control Module.


  • Now supports 2015-2017 Coyote engines
  • HP EFI kits available
  • Plug and Play the main harness for 2011-2017 Coyote engines w/ stock camshafts using stock coils (558- 110)
  • Plug and Play the main harness for 2011-2017 Coyote engines w/ stock camshafts using Holley EFI coils (558-122)
  • Compatible with HP or Dominator EFI
  • Pre-calibrated Ford sensor dropdowns in the Holley EFI software
  • Ti-VCT Cam control down to 400 RPM
  • Commanded timing matched within 1 degree
  • User-programmable tables enable the end-user to fine-tune aftermarket Ti-VCT compatible camshafts
  • 4 Built-in Diagnostic LEDS make diagnostics easy in the event of a cam or crank sensor failure
  • Integrated stock cam position tables – eliminate tuning guesswork, optimal driveability, and power right out of the box
  • Main harnesses come terminated with Ford TPS and IAC connectors, making it easy to convert from a DBW throttle body to a manual throttle body
  • Installation of an external MAP sensor is required, we recommend part number 538-13 for N/A applications
  • Main Harnesses includes a Power Tap Connector, as a convenient source for power and grounds when adding additional sensors or actuators
  • CANBus communication between Coyote Ti-VCT and Holley EFI ECU for high-speed data transfer and diagnostics


Brand Holley EFI
Emission Code 4
Harness Application Ford
Harness Type Ignition
Ignition Type Ford Coyote
Injector Connector USCAR (EV6)
Product Type ECU Assembly
Part Number 550-628N


This part is legal for sale or uses on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for a competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Additional information




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