MRT Link Adaptor Looms

Link Engine Management System Adapter Looms. These enable the Link Engine Management System (LEM) to "plug-in" to the factory harness. The following are available:

Nissan GTIR with the short "120 mm" connector
Nissan 200SX
Toyota MR2, and GT4 (3SGTE)
1. There are two different ECU configurations for the MR2 (pre '93) and
GT4 (Group A). Although outwardly similar, several internal connections
have been swapped which will result in PCB damage if they are not
correctly installed.
2. Identify the ECU type by removing the covers form the enclosure and in
some cases the internal secondary PCB in order to view the white
silk-screened legend alongside the main ECU connector. Note that the
connector has two rows of pins called "inner" and "outer" for the purpose
of this exercise. Locate the labels "RSC" and "RSO" (toward one end of
the connector) and note their relative locations. If RSC and RSO are on
different rows then this is an early (pre 93) MR2 computer. If RSC and
RSO are on the same row then this is the later MR2 version or a GT4 (gpA)
version. (RSC and RSO are idle speed actuator drives).
3. The two different Link adapter boards may be identified as follows:
Early MR2 Bottom of PCB has the logo "3SGTE"etched onto the board.
Wires on the bottom of the PCB are in a dead straight line.
Late MR2 / GT4 Logo on bottom of PCB = "GT4 / MR2 92+"
Wires exiting PCB are staggered (not dead straight)

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