A follow up to this dual sensor connections.

When I installed my TD into me aircooled 1980 I hooked the dash light
up and it now works in reverse.

ie. it's off for the first 2.5 seconds then comes on, where just
previously it worked correctly from the little oil pressure light only
fitting on the back of the Diesel head.

does this mean that my Dual Oil pressure sensor has a bad Oil light
half?

Subject:

Yeah... you had it right.  G goes to the gauge and WK
goes to the warning light.

Just a note to let you know the dual sender signal to
the idiot light trips at a little higher pressure than
stock, so keep that in mind.

Good luck, and  happy gauge reading!