Oil light keeps flickering - 2005 Kia Optima LX

Red light indicates oil pressure low! Is oil level ok?

Most likely your sensor is too sensitive and detects the low oil pressure that exists in idle .... you oil pump is not functioning fully and at idle fails to produce the right pressure. Lastly,your idle could be set too low. try increasing the idle slightly (you don't want it too high) and see if that solves the flickering light problem

Probably the oil pressure sender is bad and needs replacement.

There is a possibility that the oil pressure sensor wire located on the engine block is either incorrectly fitted or the wire is off completely and touches an earth (negative) source, causing your warning light to occasionally flicker

The light means the oil pressure is low, not necessarily that the engine is low on oil. It could have low oil pressure, or the pressure switch could be faulty.

oil pump failure stop starting n driving car tow to the dealer

There are a number of reason that could cause this: bad sensor, low oil pressure, wire rubbed and grounding out.

You need to screw out the oil pressure sensor and screw in a pressure guage then crank the car and observe the guage. It should stay above 20 psi at all times.

Does it flicker when idling or driving or both?

I think you might want to check your oil pump if not your oil pressure sensor.

It could possibility be bad or loose connection on the alternator or battery wiring, or a loose alternator belt. All those lights come on when the battery isn't getting a charge, so the alternator is where I'd start looking.

If your engine is free to move around, your engine may be losing rotational force to engine twist. Technically, when there is a sudden loss of rotational power in the engine rotating assembly, this could cause the oil pump to stop rotating for a split second. however, there are many more reasons that you need to get the mont replaced anyway.