Failure in Cavalier 1995 2.2 lts

I would like someone to help me, the Cavalier is turned on the oil of oil, hot and without accelerating, when accelerating, the directional of the right side does not turn on (it does not blink) and the one on the left side works perfectly, thanks for your help.

The oil light usually occurs due to the evil of the oil pump that does not lift the precion that must, recently posts a Toyota Corolla that happens to him the same, the light if everything turns correctly, that is, the shield indicators turn on you, the problem is in the instrument panel you disassemble it and change the ampoule or bulb that corresponds and that's it. Why do the outside light work, right?