2001 Nissan Maxima ignition misfire problem

Thanks for the quick reply, the car currently does not have any codes, but I will have the fuel pressure checked, would it be good to check if the injectors are in good shape?

Ok, so I took a dive into the motor, im attaching links to a video I made because I saw a post on maxima forums regarding an issue very similiar to mine, his problem was that fuel was leaking into the vacuum ports of this FPRegulator and dampener, I checked for this also since you wanted to check for vacuum leaks and fuel pressure, I still havent checked the pressure, but I am posting a video and audio clip (in video form) of me turning the car on and off and you can clearly hear the problem, the video clip is me checking the vacuum lines and they are dry and seem to work ok.

Thank you very much for your time and feedback, I appreciate you helping me.

Ok, so I checked all the vacuum hoses within the top part of the motor and they all seem to be in good shape, no sign of decay. I took some random pics which I have attached a link, I did make a discovery tho, also attached are 2 audio files, which will be explained in a minute, I found out that the throttle cable (dont really know the correct name) yes the one that when you push the gas pull the throttle body so it can accelerate, well I should say both cables where not properly tighten, Also I noticed there is a adjustment on the throttle body that was a 8mm nut with a bolt that has a screwdriver fitting in the middle (also included in the pics). That was preventing the throttle "gate" (also dont know the correct name) from closing all the way, I do not know if it has to be or not. I cleaned the throttle body with CRC TB cleaner, also cleaned my MAF sensor with CRC MAF sensor cleaner. So when I was cleaning the thottle body I decided to mess with the adjustment screw and set it all the way back so that I could close all the gate, had to make adjustments on the cables so that it go all the way down and close properly, once I did that I assembled the parts and decided to turn on my car, I forgot to record the audio for this but it took A LOOOONG time to turn on and it seems it would have no hope ever of turning on, when it did It would totally die on me, it wouldnt idle at all, so I went back to the original position, thats where I recorded Audio clip named "nota1" is the clip I recorded when I turned it on, before I turned off the car you can hear a AIR sound or leak when I lightly step on the gas, this is pretty much the same audio as yesterday and it does take a little less to start, the car now idles at 800 rpm. I decided to turn it up some more and see what would happen, and baaam the car starts a lot faster buuut, it idles at 1000-1100 rpm which if you are in park and put it on Drive, you have yourself a good 10mph automatically, in Audio Clip "nota 2" you can hear the difference its not a difficult to start, maybe its an Air problem?

Thanks Hmac300

Hmac, Thanks for everything, this morning a person asked if I wanted to sell my car for a reasonable price, so I went with it, didnt get a chance to finish the last part of the instructions you gave me, thank you for all your help, its great to find experts willing to help without anything in return. This shows that there are still great people willing to help others. -Cesar Cuevas