How do I test the oil light on 92 lumina 3.1

[john griggs]

I'm trying to figure out why my oil light won't come on when I turn on the key. All of the other ones run the usual self test when the key is turned on but not the oil light. The bulb is good because I swapped it with another one, they both worked in another location. Is there a way to ground or put power to the wires coming off the sending unit to activate the light?
Thanks
John

[jeffcoslacker]

Grounding the lead to the sender should light the light with the key on.

[john griggs]

Originally Posted by jeffcoslacker

Grounding the lead to the sender should light the light with the key on.

Thanks, I tried grounding the leads in the plug that goes to the sender. there are three, i got no results. I tried putting power to them also, again with no results, any other thoughts?
Thanks, John

[jeffcoslacker]

Seems like I remember some issue with the pigtail for the oil sender wiring going bad on some GM's of that general era, but I can't remember what the issue was. I do know I replaced a few of them.

With three leads, it's gonna be shunting the correct two together to get a light, I would think. Trying to remember why there's three wires. One is all you need for a light, unless you've got a low pressure interlock to shut down ignition or fuel if pressure falls.