Where is the camshaft position sensor on a 2000 hyundai sonata

There are two speed sensors, Input sensor is located on top of the bell house. Output sensor is located on the firewall side of the bell house.

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

other things it could be crank position sensor or maybe a fuel issue?

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 ---

tranny may not up shift or down shift properly

camshaft position sensor and one crankshaft position sensor

The turbine shaft speed sensor can cause this problem, It is also know as the transmission input shaft speed sensor. It will cause the transmission to **** and also stick in 3rd gear, which wound cause slow acceleration.