FAQ's

- EFI

Question

Do you need a lap top to get the engine running?

Answer

The Terminator, Sniper and Avenger Systems include a hand held programmer. The HP and Dominator systems require a laptop. All of the system can be tuned from a PC with compatible software.


Question

Are any of the systems (self tuning)?

Answer

The HP, Sniper, Avenger and Dominator systems have self tuning fuel strategy.


Question

Can I run a MSD type ignition with your EFI systems?

Answer

Yes capacitive discharge type ignition systems are compatible.

Question

Why should I choose Holley over another manufacturer?

Answer

There are other quality manufactures in the market place . Holley EFI systems offer flexibility and modular upgradability that is not offered by other manufactures. Our systems are broad spectrum and are used on everything from stock engine street rods to 4000+ HP pro-mods. The base ECU used in a Terminator is the same ECU used in Arce and in NHRA pro stock. The level of customer support we offer is unmatched in the industry from the quality of our tech support, Dealer network and end user training classes. Holley will be there after the sale.


Question

Can I run a DBW (Drive by Wire ) Throttle body?

Answer

The Dominator has integrated drive by wire throttle body control. For GM, Ford Coyote and late model Hemi.


Question

Will your EFI system plug into my factory wiring harness?

Answer

Unfortunately no, All of our systems utilize a stand alone harness.


Question

Do your systems offer boost control?

Answer

The HP and Dominator systems offer Turbo boost control.


Question

The instructions say I need to wire the main power and ground wire directly to the Battery. Is that really that important and can I hook it up someplace else like a distribution lug, starter solenoid or kill switch?

Answer

Yes it is very important. Connecting them directly to the battery is one of the most important steps of the installation. Failure to follow any installation instructions as minor as they may seem can result in performance issues including damage that will not be covered under warranty.


Question

Will your system control my factory transmission ABS brakes etc.?

Answer

The Dominator EFI has ability to run a GM 4L60E , 4L80E Ford AODE and 4R70W. HP and Dominator based ECU's can be programmed for TCC control on a 700r4 or 200r4.


Question

Are your injection systems emissions legal?

Answer

You will need to check local and state emissions regulations. Unfortunately due to the user tune ability of the systems the C.A.R.B. will not issue them an EO# at this time.


Question

Can I run E-85 or Methanol?

Answer

The HP and Dominator systems can be programmed for any concentration of gasoline, Ethanol or Methanol. However you need to make sure that the fuel system including your fuel injectors are compatible.


Question

Are any of your systems sequential fire?

Answer

The HP and Dominator series of ECUs can be programmed for Sequential Fuel strategies. They will require a cam as well as a crank reference input.


Question

Can I run water meth?

Answer

Both the HP and Dominator systems have integrated water meth capabilities.


Question

Does your system have traction control?

Answer

The Holley HP and Dominator ecu based systems support traction control when used in conjunction with a Holley specific module offered by Davis traction control.


Question

Does your system offer Nitrous control?

Answer

The HP ECU's have integrated Wet or Dry , Progressive and fixed NOS control for 4 stages, Dominator ECU's can support 8 stages.


Question

Will your EFI system work with my Oddfire engine?

Answer

Currently we do not have an EFI system that has the ability to do timing control with unevenly spaced firing orders (odd fire). However, if you have an ignition system that has an RPM output, you can use our EFI for fuel control.


Question

Will your EFI work with a turbo or other form of forced induction?

Answer

The HP and Dominator ecu's are compatible with 1- 9.9 Bar applications. The systems also has integrated boost control. Sniper EFI has a 2 bar integrated map sensor.


Question

Where do I send my ECU to have it repaired?

Answer

Unfortunately we cannot repair the ECU because it is Potted. Potting the ecu provides several benefits. The down side is that a potted ECU cannot be repaired if it is damaged due to improper installation. Always read the instruction and follow proper installation procedures to avoid ECU damage. If you damage the USB port by pulling the cable out of the connector on the back of the ECU we may be able to repair it. Contact a tech service representative for more information pertaining to a damaged USB port.


Question

What type of injectors and how many can the system run?

Answer

The HP ECU can run up to 16, high or low impedance injectors. It can stage two sets on a 4 cylinder. The Dominator ECU can run up to 24 high or low impedance injectors. It can run three sets with one staged on a 6 or 8 cylinder. The Sniper EFI system will be offered in a 4 and 8 injector option.


Question

Are Terminator, Sniper, Avenger , HP and Dominator systems narrow or wide Band?

Answer

They are all wide band systems. The Dominator is dual channel capable.


Question

Will your system run DIS?

Answer

The HP has 8 channel outputs the Dominator has 10 channels . They are capable of driving "Smart" coils, Holley DIS coils or 2 wire high current "DUMB" coils with the addition of the 554-112 high current coil driver as well as Waste Spark applications.


Question

What type of injectors and how many can the system run?

Answer

The HP ECU can run up to 16 high or low impedance injectors. It can stage two sets on a 4 cylinder. The Dominator ECU can run up to 24 high or low impedance injectors It can run three sets with one staged on a 4 or 6 cylinder. The Sniper EFI system will be offered in a 4 and 8 injector option.


Question

Do your systems support Transmission control?

Answer

All systems that include a Dominator based ECU can controll the following transmissions. ( GM = 4L60E, 4L65E, 4L80E ) ( Ford = 4R70W and AODE ).


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