4
INTRODUCTION
On non-EFI or mechanically injected diesel engines, a
throttle position sensor must be sourced and installed for use
of this control module.
4L60E/65E Transmission:
•
The PERFECT TORC Transmission Controller
only supports 1996 and newer
4L60E transmissions.
•
When using a later model 4L65E transmission it will not be necessary to plug into
the input shaft speed sensor. The TORC Controller
does not need the input shaft
speed to properly control the transmission.
4L80/85E Transmission:
•
The PERFECT TORC Transmission Controller
supports 1993 to present 4L80E
transmissions. However, the 1993 and earlier 4L80E transmissions use a
different internal wiring harness and main pass-through connector. These early
designs inherently leak fluid through their pass-through connector. General
Motors has several Technical Service Bulletins recommending the upgrade to the
newer style connector and harness. The TORC Controller’s main harness
connector is not
compatible with the early harnesses. If an early 4L80E
transmission is being used the harness must be upgraded to the 1993 and newer
style to use with this system.
•
The 1994 and earlier 4L80E transmissions use a “Bosch” style pressure control
solenoid. This solenoid is not
compatible with the PERFECT TORC Transmission
Controller. It is necessary to upgrade to the 1994 and later “Holley” style
pressure control solenoid. The “Bosch” solenoid is silver in color and the later
“Holley” style solenoid is black in color. If your solenoid is black in color, it is the
correct one and does not need to be changed. If your solenoid is silver in color, it
is the incorrect one and the GM part number 8684216 must be installed. This
number can also be cross referenced at most transmission parts suppliers and
purchased.
