This Holley EFI programmable 8-channel injector driver module gives methanol-burning engines full control over a secondary set of high-current injectors, with programmable current curves, test-fire mode, and dual datalogger outputs.
Specifications:
- Category: Air and Fuel Delivery
- Product Type: EFI Part / Fuel System Controller
- Channels: 8, individually programmable
- Peak Current Settings: 4A to 10A
- Hold Current Settings: 1A to 2.5A
- Peak Hold Duration: 0.5 to 1.0ms
- Connector: Tyco Super Seal (connector, pins, and harness not included)
- Trigger Input: Positive or negative trigger
- Part Number: 554-143
Engineered to add a secondary set of high peak-current injectors when running a Holley EFI Dominator ECU; ships pre-programmed in Position 7 for Billet Atomizer 325-800 or Precision 500 lb/hr injectors. Eight RGB LEDs indicate proper operation and log faults, and two outputs (ground and 0-5V) can feed an ECU to datalog injector faults.
FAQ
What is this module used for?
It adds a secondary set of high peak-current injectors for methanol-burning or high-injector-count applications, most commonly with a Holley EFI Dominator ECU.
How many channels does it have?
Eight independently programmable channels.
Does it include a wiring harness?
No — this is the module only; connector, pins, and harness are not included.
What are the peak and hold current settings?
Peak current is adjustable from 4A to 10A, and hold current from 1A to 2.5A.
