2004 cavalier LS SPORT, 5 speed , 54000 miles,had car since 32000 since july 08.
Before,back in spring time, oil light would come on 80% of the time, always kept oil changed every 5k with mobil 1 5W-30.
about 2 months ago, all it does now, is come on for a few seconds then go back out,
mostly when u get up and go, not real fast,just normal getting up to speed.

Im thinking its the oil sensor?

also, i had to fix part of the washer fluid line yesterday from the battery rubbbing it so much, so i put it the new battery outta my other cavalier since my brother doesnt know much about cars.

but i relazied when i put the battery back in, the car put 40 mile son itself,
sounds crazy! but im 110% sure it did.

what could of casued that?