>I believe the Vovlos suffered from failure of the electronic
>throttle module rather than the ECU.  This is part of the
>"drive by wire" system which I have always considered a very
>poor idea.  Give me a throttle cable any day of the week.

OK, but in a simplified way I see the two as synonymous, in that the 'wires' 
are still going into a lump of electronics that control the engine ...

It may be a separate module that does the throttle control, to the module 
that does the engine management, but I suspect they are all inside the same 
box (but I haven't looked under the hood of a Volvo to find out) ... 

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