o2 price?

[Geffro]

You Nigel nigel.robertson at roke.co.uk wrote

>It electronics it is quite common practice to keep a common earth point for
>various parts of the system and I would suggest that in auto electronics
>with quite a few sensors that could be prone to noise the same is true.
The
>ECM on my car (ROVER MEMS) certainly has this set-up.  The idea is to avoid
>creating ground loops so running a ground wire, which is isolated from the
>chassis ground, to the sensors as well as a signal wire prevents a ground
>loop being set up around the ground wire and back through the chassis back
>to the ECM common ground.
>
I'm a little lost here
Where would a ground wire go if it is isolated from the chassis ground?
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Geoff Richards
mha at operamail.com
My learning curve seems to start way over my head
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