MAC05/MAC12 questions for the Brains Trust

[isham-research.freeserve.co.uk at pop.pol.net.uk]

Got caught out yesterday.

Someone turned up at the workshop with a 200TQ.  1985, KG engine.  Lots
of things wrong or perhaps anomalous.  It looks as if someone has been
trying to retrofit 1B (roughly MC-1 without smog) electronics.  The
turbo is water-cooled and an afterrun pump has been fitted.

The fuel injection system is stock for a KG (except for the note below)
and still uses a purely mechanical -147 metering head.

We tried to get diagnostic information out of it like you would with a
KG (MAC05) using the idle and WoT microswitches.  Nothing.  So I
checked the ECU.  A MAC12!

The engine is actually a bodged-up hybrid.  It's really a KG, but the
harness seems to be from a 1B - it has the connectors for the sender
that controls the afterrun pump nicely integrated.  Three kludges  - so
far - the inlet air temperature sender has been moved to the
intercooler and its mounting place taken by a seventh injector - a cold
start valve wirely crudely to the WoT switch.  The MAC12 has been
chipped - the label strongly implies a supplier in the relative legal
safety of Licthenstein.  The fuel relay has been hot-wired and runs off
the X-relay - the pump runs whenever the ignition is on.

We tried substituting a MAC05 for the MAC12 (obviously before we
reliased the state of the harness and other wiring) and only succeeded
in blowing up the MAC05 - which now won't run the fuel pump in the 200T
we took it out of.  Looks like Scott might get another repair to do ...

Does anyone recognise a package like this?

--
  Phil