My oil pump and oil sensor were changed at 81,000 miles.
I had the same problem with the oil light flickering. I had the oil pump and oil sensor changed and that fixed the problem. The only problem I am having now is that I am getting 14mpg. I just changed the spark plugs and they appeared to be the same ones that came with the car from the factory so I'm guessing the car wasn't maintained properly. so I'm gonna try a fuel injector cleaning and see if that fixes my horrible gas mileage.
Try installing a new oxygen sensor (s). Most often a big contributor to mileage issues. Also, you may into other problems later... usallly poor mileage is the first indicator.
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