Welcome to Allpar. If your 'ck eng' light is on, find out what the fault code is before turning it off.
You can disconnect and reconnect the battery terminal to reset the PCM memory (remember to set your clock/stations afterwards).
If the fault is active, the light may not go out. If the reason for the fault code is no longer present, the light will go out by itself after 2 or 3 'good trips'.