What are injector drivers?

RUQWKNF

New member
The injector drivers are nothing more than resistors in the ECM that control switching for activating the injectors. They are required when you run Low impedence injectors such as the 55# and larger injectors. 50#ers are the largest you can run without changing the drivers.
HTH
Patrick
Precision Turbo & Engine
Sales / Tech
www.precisionte.com
 

smeagol

Active member
For a bit more detail:

A low impedance, peak & hold injector, usually requires its own driver. A high impedance, saturated type can run several injectors per driver. The Syty ECM, being batch fire, runs all 6 off of one driver, even though 2 are present in the ECM. If you want to run 55# or larger, you need to install peak & hold type injector drivers.

Almost all the aftermarket EFI computers I know run peak & hold drivers. You can run a high impedance injector in a peak & hold configuration, but you CANNOT run a peak & hold, low impedance injector in a saturated/high impedance setup. It will burn out the driver.

Brian G
 

jwaller

Evil Genius/SyTy Guru
Ok, so would there be any reason or any need or benift or even a way of using the second inj driver in our ECM?
 

10secTy

Sy-Ty builder and Tuner
Hey Brian will we have to use both drivers when we convert Tonys ecm for the 75's?

Nolan
 

Sy769

Donating Member
The syty ecm has two injector drivers. In our application one driver is used for 6 injectors. Okay is the other driver active? Do the drivers even care if they have one injector or six as long as they are the stock style high impedance type?
Thanks guys, just trying to understand this system a little better.
 
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