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OBDII Port Wiring with a Blackbox 2G ECU Swap


Mac
Junior Member
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Galant VR-4 org Post #: 1224614 posted 02/23/16 08:29 AM     Remind Me!  Send Private Message   Edit Post      
I built a jumper harness to swap a 2G flashable ECU into my 90 Talon AWD. I know it's not a GVR4, but the wiring should be the same.

I can't find a list of which wires on the OBDII port need to be connected and to where they be connected. Currently, I have OBDII pin 1 attached 2G ECU pin 56 with the yellow wire and OBDII port 7 to 2G ECU pin 62 with the pink wire according to the wiring guide I found.

What else needs to be connected?

Posts: 54 | From: Memphis, Tn | Member Since: 05/15/11 | IP: (208.115.24.194) | Report this post to a Moderator

tektic
Senior Member


Galant VR-4 org Post #: 1225587 posted 03/16/16 10:52 AM     Remind Me!  Send Private Message   Edit Post      
The only wires the OBDII port needs from the ecu are power, ground, and K-line. The L-line is not used.
Connect OBD2 Pin 4 to chassis ground - DSM pin 101
and OBD2 pin 16 to switched power - DSM pin 102

Posts: 1410 | From: ronkonkoma, ny | Member Since: 12/19/12 | IP: (74.71.69.137) | Report this post to a Moderator

Spyke169
Member +


Galant VR-4 org Post #: 1225663 posted 03/17/16 08:34 PM     Remind Me!  Send Private Message   Edit Post   
Hopefully this is everything you need click



'90 Galant GSX, Daily Driver
'93 TSI AWD, Project Car
Sold the VR4s that I have owned, miss them everyday.

Posts: 324 | From: Greenfield, Wi | Member Since: 08/17/05 | IP: (2602:304:b095:ca) | Report this post to a Moderator


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