I'm experiencing rough/rocking idle of the engine. Also stalls when performing parking manouvers. Could i need new spark plugs?

There could be a few different reasons why your truck is experiencing problems after replacing the map sensor. Here are a few things you can try:

Make sure the map sensor is installed correctly. Check the installation instructions and ensure that the sensor is properly seated in the correct location.

Check for any other damage or issues with the engine. If the engine has any other problems, such as a vacuum leak or a faulty ignition system, it could cause the truck to idle rough or stall.

Check for any codes or diagnostic trouble codes (DTCs) that may be stored in the engine's computer. These codes can help identify any problems with the engine or other systems that may be causing the issues you are experiencing.

Check the fuel system. If the fuel pump, fuel filter, or fuel injectors are not functioning properly, it could cause the truck to idle rough or stall.

Check the ignition system. If the spark plugs, ignition coil, or ignition con

https://www.youtube.com/watch?v=bDCaAZedVYY

Rough idling can also be caused by clogged filters. ... Bad spark plugs, bad spark plug wires and a bad distributor cap are other common causes of rough idling. These items are all important parts of what keeps a vehicle running. Spark plugs provide the spark that ignites the air and fuel mixture within the cylinders.
https://takeit2thehouse.com/common-causes-of-a-rough-idling-engine/

Vacuum leak

Is the check engine light on ?
Have you checked the computer for trouble codes ?
You could have one bad spark plug even with only 30k on it.
Problem could also be a dirty injector.

spark plugs good

Take car to garage and check engine fault codes. The problems you are experiencing suggest that it may be a faulty oxygen sensor.

Have you cleaned your throttle body? You can use a carb cleaner but tb cleaner is best. It doesn't take long and will improve the performance if it hasn't been cleaned. Should be cleaned about once a year depending on how many miles you drive.

start by pulling hose off egr valve see if idles smoother almost instantly

Change fuel filterS...plural
Don't forget the big canister unit under (next to wheel well)

your probably feeling a rough idle of the engine. need a tune up?

in park the engine is not loaded down, just idling at a low rpm=rough
in drive with brake on you have put some load on motor also at low rpm=rough
in drive on the road engine is at higher rpm, = smoother

generally 4 cylinder motors idle a bit rough, especially if one spark plug is not firing right or fouled or one bad spark plug wire. tune up may fix it. if it is not stumbling real bad or stalling then you can live with it.