That depends, each vehicle takes a different amount of time to do all the required self tests.
Fix the cause of the code that turned the light on.
The service engine did not shut your car down, It was the part that turned the light on, (not the computer monitoring system) You need to determine what turned the light on that's very likely what turned your car off.
To get your gas turned back on, you will need to contact your gas utility provider and arrange for a technician to come and restore service. They may require a safety inspection or payment of any outstanding bills before restoring service. Be sure to follow their instructions and procedures to have your gas turned back on safely and efficiently.
The check engine/service engine light should come on as soon as the ignition is turned to the on position without starting the engine. If it does not, then the bulb is either blown or has been removed.
Your check engine light will not come on in the auxilary (accesory) position. It comes on when the key is in the on (run) position to check the warning lights just before you start the vehicle.
The engine of what? The car? And usually, everything must be turned off before its safe to remove or install anything.
WHAT??????
Kissed her
When the engine is turned off the next service time or driving distance display is shown
10,000
Kissed her.
On a 1990 Mercury Villager, the fusible link is typically located near the battery, often in the engine compartment. It is usually found in a wiring harness connected to the positive battery terminal. If you're unable to locate it, consult the vehicle's service manual for a detailed diagram and specific location information. Always ensure the vehicle is turned off and the battery is disconnected before attempting any inspection or repair work.