oil light wont go off!!!

[4dRcOrOlLA]

ok my oil light came on when my car was jus siting in my garage for like 4 days so i check the oil n it was low then i tried to reset the light to turn it off by takin the neg cable out n it still there! i even pulled the positive out too n its still there. any advice would b appreciated, jus hope it nothing costy to fix thanks

[SCT]

Originally Posted by 4dRcOrOlLA

ok my oil light came on when my car was jus siting in my garage for like 4 days so i check the oil n it was low then i tried to reset the light to turn it off by takin the neg cable out n it still there! i even pulled the positive out too n its still there. any advice would b appreciated, jus hope it nothing costy to fix thanks

Could be the oil pressure sensor itself. Or the oil pump, clogged oil filter, or in need of new oil.

[nizzehult]

Oil pressure sensors seems to fail often. Happend to me a couple of times at a number of japanees cars, different makers.
Less then 10 bucks for a new one. Easy to swap.
If the oli pressure really is bad you should here a metallic sound from the engine while running.

[4dRcOrOlLA]

So where is this sensor located at ? And I can't hear nothin because my. Steering is squealin right now lolz thanks guys

[nizzehult]

I think it's located right above the oil filter. Check this pic:
http://www.toyodiy.com/parts/p_E_198....html?hl=83530

[Flashmn]

If the oli pressure really is bad you should here a metallic sound from the engine while running.

Thats when you've toasted your engine.

If you're sure its not the oilpump and that you have correct oil pressure, then change the sensor, its behind the alternator. I'd hook up an oil pressure gauge to be sure.

[ELUSIV Rolla]

I've recently hit the same problem, not staying on but taking ages to turn off, oil press gauge says everything is normal though. Weird.

My solution, unplug the sensor lol.

[blb]

If you want to diagnose the problem rather than throwing parts at it, here's how the circuit should work.

With the connector pulled off of the oil pressure sender and with the key on the "on" position, if you ground the contact in the connector, the oil light should be on.

Again with the connector off of the oil pressure sender, if you use an ohm meter and check for continuity, with the engine off, there shoud be continuity from the post on the sending unit (where the connector attaches) to ground. With the engine running, there should not be continuity from the from the post on the sending unit (where the connector attaches) to ground.

Most times, they fail so that the light is on when it shouldn't be however, last weekend I changed one that failed so that the light never came on when it should have.