So I bought 2003 350z from this old retired guy. I go to smog it and it fails smog because of the cold air intake. Im not too concerned about the cold air intake I can just go ahead and reinstall the stock intake. There is however this weird sensor that seems to be ziptied onto the intake and I have no idea what it is. I thought it was the mass air flow sensor but it seems to be a second sensor thats sliced into some other wires that I dont even have a clue about. Idk what the purpose of this sensor is and Idk if its even safe to take it off.

does anyone have any ideas as to what this is?

 

 

 

Im just wondering why tf theres 2, I wanna put the stock intake back but that second ziptied sensor is literally spliced into some other wires thats connected i to the maf sensor.

 

Maf tuner maybe. Not that many wires though.

 

That's a Fetzer valve. You fill it with 3-in-1 oil to modulate the phases of the piston return springs.
I had one on my car, had to remove it, too much power for me.
I can't imagine having two of them.

 

clean that damn engine bay!

 

Is nobody addressing its being secured by a ziptie?

 

Take it off and put the 2 wires back together

 

Take it off and take some pictures!!!

I wanna see!!!!!!!

 

Ttiwwop

 

That is because it is the high end model... everyone knows the standard version uses duct tape.