Where is the fuel pump cutoff switch on my 1997 hyundai elantra car

It doesn't have one . Check it out here http://www.bbbind.com/free_tsb.html free wiring diagrams . Enter vehicle info. year , make , model an engine . Under system click on engine ,then subsystem click fuel control ! then click search button . click on the first blue link ,second diagram . Fuel pump control ,you will see fuel pump relay , fusible link 20amp powers fuel pump . no cutoff switch . Videos on youtube automotive electricl testing using a volt meter . Testing Electric Fuel Pump Problems with Voltage Drop Test

pull the relay-- their is no fuel cutoff--fuel reset -or inertia switch on vehicle

There should be a inerta cutoff switch that shuts off the fuel pump when you have a crash. It could be under the dash on the drivers side or possibly in the trunk. It would have a little button that needs to be pushed in to reset it.

No cutoff switch on Hyundai cars. Only Ford products.
The fuel pump and injectors get power from the engine control relay.

Throttle position sensor, check that, or fuel pump/filter

The fuel cutoff switch is located on the drivers side strut tower next to the brake master cylinder. press down on the top rubber part and you should hear a click.

If your fuel pump is damaged, when the car is cold, the fuel pump is also cold so it works with a greater pressure, but when the car is warm, a damaged fuel pump will loose pressure. So if you replace the fuel pump the problem will dissapear.

Ford is the only car manufacturer that has this option for a fuel cut off switch

there is no fuel cutoff switch. it uses a relay that is conrolled by the computer.the relay is under the hood in the relay/fuse box. under the plastic lid is a map of fuses/relays

well it could be as simple as just replacing the fuel pump relay. it's located in the junction box under the hood. if the relay is good then check the fuel cutoff switch. that is located behinfd the fabric in the trunk along the wheel wells. if this was not triggered then it could be that you might have a glitch in the ecm water is not kind to computers especially cars that have the ecm's in the engine compartments