Where is the engine number of the 2008 hyundai sonata located?

Question edited for clarity and correct order.
Question moved to model category.

There is an Inertia Switch, but that only activates if you crash at speed.

It is most likely the fuel pump relay. Lots of information in the link

https://www.google.com/search?q=2008+Hyundai+Sonata+3.3.+Fuel+pump+reset+button+location

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The location of the number 1 cylinder in a 2008 Hyundai Tucson is determined by the engine type and layout.
Hyundai Tucson 2008 models comes with 2 different engine types :

• 2.0L I4 engine
• 2.7L V6 engine

In both engines, the firing order is 1-3-4-2, and the cylinder layout is inline or straight.
The cylinder layout of the 2008 Hyundai Tucson with 2.0L I4 engine is inline 4-cylinder, meaning that the cylinders are arranged in a line, one after the other. In this configuration, the number 1 cylinder is typically located at the front of the engine, on the driver's side.
The cylinder layout of the 2008 Hyundai Tucson with 2.7L V6 engine is V6 engine, meaning that the cylinders are arranged in a "V" shape. In this configuration, the number 1 cylinder is typically located at the front of the engine, on the driver's side, and it's the first cylinder on the left bank.

If you need to know the fuel pump relay of your Hyundai Sonata, then here I have mentioned the video which shows you 07 Hyundai Sonata 3.3 fuel pump relay location, have a look

Here's a picture to your cylinders,number one cylinder is at that side exhaust manifold,the sensor is screwed into it. Specifications Firing Order AutoZone com

The only brand I know of that has a safety valve for the fuel pump is Ford.
If you have no fuel pressure I would check for voltage at the pump relay.

You don't need engine specs, just a part number. Autozone.com

My online Sonata manual shows these possibilities, but does not identify which applies specifically to 2000 Sonata.
Also, when you talk to the dealership parts counter, you'll need to know whether your 2000 Sonata is (a) 4-cylinder 2.4L MFI DOHC engine, or (b) 6-cylinder 2.5L MFI DOHC engine.
Its easy to tell - just count your spark plug wires.

-- begine excerpt from 2000 Hyundai Sonata Repair guide --

The crankshaft position sensor is located next to the flywheel.
The crankshaft position sensor is located next to the flywheel/torque converter.
The camshaft position sensor is located on the engine near the timing belt cover and under the upper radiator hose.
The crankshaft position sensor is located on the driver-s side of the vehicle, down by the lower radiator hose.
The crankshaft position sensor is located on the engine near the crankshaft pulley.
The crankshaft position sensor is located at the front of the engine near the timing belt.

--- end excerpt from 2000 Hyundai Sonata repai guide ---

hi from uk have a look directly under the alternator ? oil filter screws direct ino side of engine horizontally and is a small cylindrical type

hi
it was internal sensor in the MAF sensor
the MAF is MASS AIRFLOW SENSOR
locate in the engine intake hose near the air filter .

with my best wishes