Bob,
    I think your mislead here.  By grounding this wire you
are disabling the high pressure alarm.  Most vehicles
don't have this anyway.  Your not fixing anything by doing
this, just disconnecting it.
                                                   Eric

"b.t.allen" wrote:

> Hi Debra, sure gets your attention though doesn't it. I've just finished
> with the same problem and it's usually a bad ground from the sender unit.
> Ken from Vanagain saved my sanity buy giving me the simple solution.
> There is a brown ground wire that runs from to top of the engine, past the
> distributor and water pump. Disconnect that from the sending unit and
> re-connect to a good ground, like the spade screw on the base of the
> distributor. Works like a champ and your idiot light and buzzer starts
> functioning properly.
> Good luck
> Bob Allen
> 86 Syncro