Why does my engine start bogging down when it gets to 3000rpms in park

Could be a plugged catalytic converter.

maybe the catylitic converter is stopped up ....won`t let exhaust flow like it should...

tighten the spark plugs to factory torque...
Park it in the dark and start it up.
spray some glass cleaner MIST over the engine compartment to find the sparks.... and replace that part.

I have seen this type of problem before, this sounds like the engine is not getting the correct amount of fuel pressure it needs as you accel.the first thing is to remove the fuel filter and replace it, take the old filter and blow into it, this will tell you if its restricked. the next step will be to check fuel pressure, you will need a gauge for this test, hook up gauge at valve on the injector rail, take caution wear safty glasses as fuel is under pressure and will spary out a little as you connect line for the gauge to fuel injector rail valve, you will run the engine and also step on gas pedal as you watch the pressure, i would rev the engine to around 3000rpms and hold it to see if engine tries to stall or buck when it begins to act up look at the gauge and if the pressure drops as it starts to act up then the fuelpump is bad. its not able to keep up the pressure. start there good day.

MANUAL TRANSMISSION OIL GOT TOO LOW.CHECK MANUAL TRANSMISSION FLUID SOUND DRY.

What are the fault codes you read.

The CAMshaft position sensor is faulty.

check your throtle cables and plate in throtlebody for opening & closing properly,

i dont know why it stalled out but i do know if in park or neutural it has a limitor on it that will not let the rpms go to high and it feels like its missing but this is normal to keep the engine from reaving to high.

on the throttle is a valve/sensor with a carbon track in it and i think it needs changing .not a cheap thing