once CEL lights up, the error code will still be there even if the CEL doesnt light up after u restart the engine....until u reset the ECU....best is to read the error code to identify the correct problem n way to solve it....
I know it might be a long article but once u click it please read it
until the end hahaha... my english is simple and direct (user friendly)
it wouldn make u fall asleep.. ^^