August 1988 MA70 wiring weirdness.

SlimLim

New Member
May 21, 2006
170
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Australia
Hi,

I been looknig at this tutorial, and trying to ID plugs and wires http://www.supras.nl/index.php?option=com_content&task=view&id=34&Itemid=50

I have a August 1988 Jap import MA70 supra BUT i have come across something unusual that i need help with. I appear to have a 1989 ecu as the plugs are (from left to right) 26P, 16P and 22P.

The connectors from the ecu loom to the dash is a mix of pre 1989, and post 1989 connectors. This is what i have come up with:
  • I don't have the M1 plug.
    The B1 plug seems to be the 1988 version but with additional wires.
    I have two B2 plugs.
    I appear to have a B4 plug, but with three wires off it instead of two.

Please see the pics to explain what i'm talking about.

imgp4712.jpg

imgp4709.jpg

imgp4708n.jpg

imgp4707x.jpg

imgp4706.jpg


As a result, half of the wiring isn't on the plug when it's supposed to. For example, i seem to have two B2 connectors, with missing wires. However, i have these plugs under the dash, so it has to go somewhere.

Am i missing something fundamentally wrong here, or is this just odd?

Regards


Nick