Is it normal for my car to fix itself?
So... service engine light comes on. Computer reads "misfire on 5th cylinder" or something like that. Spark plugs and wires are changed. Service engine light is reset but remains lit and computer reads the same. Car still drives like shit. Car is driven for 2 or 3 days and slowly begins to run better. While car is driving, driver notices drastic improvement of car, though the engine light is still on and no additional work was done. After driver turns approaching corner, driver looks down and notices the engine light has gone off by itself, without being reset again. Is this normal?