1G Oil pressure wires

[jlust07]

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I was curious if anyone knew what colors B20, B21, B22 were and what they looked like from the pictures provided.

 

[petrosian]

Your picture is accurate for two of the colors. Blue for the oil pressure gage unit (that big cylinder) and yellow for the oil pressure switch (triggers the red oil light in the instrument cluster).

That white (or is it yellow?) wire is not B-20. B-20 is just a single small plastic connector that allows the gage unit wire to be detached.

The white (or yellow) looks like either the power steering pump pressure switch (B-17, whose wire is yellow) or the white wire that connects to the screw post on the alternator (B-19). I can’t tell from your pic. Judging by its length, I'd say its the power steering pressure switch wire.

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[steve]

it doesn't look like any of those sensors are original so I'd double check both ends of the wires you're thinking about connecting. Aftermarket sensors don't usually interface with the factory gauges/warning lights.

 

[jlust07]

I connected the blue wire to the larger solenoid seen in the right hand side of that first picture and my oil pressure came up! Thank you everyone that replied