Flickering oil light

I have a 2005 Chevy Aveo. Had the oil pump checked and it was working great. The sensor was changed but still flickering.Only flickers under 1000RPMs. What am I missing!!!???

How often do you have your oil changed? Where do you get it changed? What thickness of oil do they use? How many miles do you have on it?

Just curious: What kind of test was used to determine that your oil pump was “working great”