Ben's e//S2

Good news! The oil looked completely normal again. No longer frothy or full of bubbles. The other thing is, the dipstick now reads down a half litre, as opposed to over filled by half litre before I started it. This makes sense, since I only filled 4 of its 4.5L capacity. So in the end, I guess what happened is that every drop of oil that I had poured in was sitting in the pan. This caused an over-fill situation, causing the crank shaft to whip the excess oil into a thick foam.
As for the oil pressure warning light, I'm not sure. I haven't had the chance to look into it. But given that the oil pressure gauge reads normal, and that it appears that the oil has circulated to its proper places, I have a feeling that the wires on the sender may be reversed. I won't be taking that lightly though.

Thanks to all of you who offered insight!

cuatrokoop

I thought that the oil pressure senders/switches were single pin? Or do you mean you have the high pressure sensor hooked to the low pressure wiring, and vice versa.

Ben's e//S2

The 3B has a 2-pronged pressure sender, along with a single pin sender. If the wires on the 2-prong sender are reversed, the warning light will be activated.

cuatrokoop

That would do it...Its the low pressure (0.3bar) sendor as well as the oil pressure gauge sender. The gauge circuitry should just take magnitudes, not values. The "idiot" light would only care about +/-, not magnitude.