Alternator Question -Jim's oil light

[Jim Green]

--- Huw Powell <human747 at attbi.com> wrote:

Snippage...

> When the car is not running but the key is on, the
> oil pressure unit
> grounds this wire - but not to perform some
> alternator function - this
> is to light up the alt light and a couple of other
> warning lights to
> test their bulbs.  When the car is running and all
> is well, the alt
> light ends up with 12v on both sides and thus goes
> out.  The oil unit
> might determine this by the presence of oil
> pressure, or the engine rpm,
> since it has both bits of information.

Once again, Huw helps with a completely unrelated
problem... hopefully:

Hmm, is the system similar on the type 89?  Ever since
I put the Haltech in I've had the stupid oil warning
symbol beeping and flashing at me, and now the low
fuel warning comes on at 1/2 a tank, but only when I
turn right, wierd.  I've looked at the diagrams for
grounds and stuff that I could have missed, but I bet
the oil warning system is not getting the RPM signal.
Any thoughts for this weekend wiring cleanup?

Thanks,

=====
Jim Green
'89 90tq 034EFI, Haltech IG5
http://www.geocities.com/jeg1976/car_home.html

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