Thu Jan 30 15:34:58 1997 - Message No. 328
From: Michael Dipper

Subject: Re: Fuel pump


Hi,

On Thu, 30 Jan 1997, Stefan Loth wrote:

> Now to the AT-diagram:
> Here you have also the fuel pump and the preasure switch (and the CDI
> black box??).
> The fuel pump is connected on one side directly to ground (G). The 2nd
> cable (+12V (Bl/Bu)) is going to the switch I mentioned above. On this
> switch are 2 more cables (Bl/R and Bl/Y).
> (Bl/R) is connected to fuse "D" in the fuse box and also the the
> start/stop switch. From the other side of the start/stop switch it is
> going to several points on the diagram. (Bl/Y) is going to the CDI.
> 
> The question now, does somebody know what the CDI does?

Because normally the fuel pump is only working, while the engine is
running, I suppose, that the CDI-unit provides the "engine running"
signal. All other cables to the pump, you mention, are independent from
the running state of the engine, aren't they ?

An other possibility would be, that the signal from the pressure switch is
"running" dependent because the CDI unit supports the pressure switch
with this signal ...

--- Micha ---

-- 
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|  Michael Dipper,  Ludwigsburg (Germany)                   |
|  Email:  dipper@isd.uni-stuttgart.de                      |
|  WWW:    http://www-normans.isd.uni-stuttgart.de/~dipper/ |
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