At first I had a P0011 code then when it went away, then loud knocking came. I'm not sure if it could be a coil pack or something else. Help please. Left a link to whats going on. Let me know if any more info is needed.

 

That does not sound good man. P0011 is usually an indication that rear ivt is not getting oil or not working. Usually it means the cars oil level is low.

 

 

That is not a sensor, thats a mechanical noise. the only thing i can think off is a valve thats out of spec, they can be adjusted. piston slap can also make a noise like that. get a mechanics stethascope and pinpoint which valve cover its coming from

 

it could be that the pick up tube is plugged up and the car is not getting oil.
​​​​​​someone couldve dumped a bottle of stop leak or something and plugged it up.

Also sounds like someone threw the air filter in trash and rolled round without it.
Have you gutted the cats ? Id begin with gutting those because if there was no air filter those are most likely plugged up

 

The same dreaded knock started about 4 months ago in my car.Was told by a former Nissan tech that it's a rolled bearing.He told me my best option is to replace the engine.

 

Sounds like it ran low on oil. Thanks precats!

It's toast.