99 HYUNDAI SONATA, ENGINE WHEN WARM CONTINOUSLY REVS

Watch the video of the replacement job 2004 Hyundai Sonata Optima V6 2 7 crankshaft position sensor location and...

The camshaft position sensor is located on the engine near the timing belt cover and under the upper radiator hose.

see if this link helps you out.
sensor camshaft position of hyundai sonata gls 2010 2 4 4 cylinders Google...

normally that is inside the distributor housing or on its shaft . though im an old mechanic an just guessing

The camshaft position sensor is located on top of the engine near the ignition coils.
The camshaft position sensor is located on top of the engine near the ignition coils.
The camshaft position sensor is located on the engine near the timing belt cover and under the upper radiator hose.
The camshaft position sensor is either located near the top of the engine, passenger-s side, or on the right side of the engine near the ignition coils.
The camshaft position sensor is located on the engine near the camshaft pulley.
This sensor is located at the front of the engine near the camshaft gear this is what I got 6 different locations manual covers 99-05

It is buried under fuel hoses and vacuum lines follow top radiator hose to engine under fuel line between air cleaner box and head

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 ---

will likely be on the bank with 153 ...the other bank is even numbers 246 .

It is located at the right top of engine (V6). Looking from the front of the car, it is just past the plastic cover over the engine. It has a silver clip (looks like a paper clip). remove clip and unplug sensor.