But not all foils are the same, right?

Certainly, at least the early versions of the foil don't have the portion
of it that goes over and plugs into the dynamic pressure circuit.  I guess
they just didn't change the resistor part of the foil when they added that
extra bit to it?

On Wed, Jun 6, 2012 at 10:19 AM, mark drillock <mdrillock@cox.net> wrote:

> Sure, I know why. The same foil blank was designed as able to be used for
> single oil pressure switch models and dual oil switch dynamic models. When
> the final assembly of the foil is done, only single oil pressure switch
> models get that resistor. The resistor connects the single oil switch wire
> of the 14 pin connector directly to the oil warning led. On dynamic dual
> clusters the 2 switch wires of the 14 pin go to the dynamic oil pressure
> board connector and the output of that board goes to the oil pressure
> warning led. The resistor bypasses that circuit board connector for single
> oil switch vans.
>
> In the US only 86+ with 2.1 got the dual oil switches.
>
> Mark