Haltech E6X Manual Win Version - Manual (Page 126)

E6X Manual
126
C.2 The Injector Drivers
The ECU uses switched injector drivers that can control the current passing through an
injector by switching the low side of the injector between ground and 12V while the injector
is open. When it is required that the injector be turned off, the low side of the injector is left
floating which will prevent any current from flowing in the coil.
The ECU has 4 separate drivers that are capable of driving either 4A peak - 1A hold or 8A
peak - 2A hold. Each driver can be programmed to drive at either current level by the
programming software. The 8A peak – 2A hold is generally used to drive 2 injectors in
parallel that each require 4A peak – 1A hold drive, this method of connection would be used
with an 8-cylinder engine which used 4A peak – 1A hold injectors.
Input/Output Setup page showing Injector Current Setup
WARNING:
UNDER NO CIRCUMSTANCES SHOULD YOU MIX SATURATION
AND PEAK-AND-HOLD INJECTORS ON THE ONE DRIVER. THIS
WILL LEAD TO ERRATIC INJECTOR OPERATION.
Should you need to drive more than 8 low impedance injectors or more than 16 high
impedance injectors contact your Haltech dealer.
Injector
Current
Control
Settings Injector
Current
Control
Settings