Originally Posted by eonsx311
will it make my check engine light stay on after i jump that plug?
Do you mean will the light be cleared away after you've gotten the code off? If so, then no, it will stay on as long as the error is active. Resetting the light and error codes usually involves disconnecting the battery for about 30 seconds and it should clear.
If it is water getting into your engine, get the problem fixed ASAP before permanent damage takes place.