can somebody tell me what this is please?it was disconnected for a while just wanted to know what it is?thanks

 

 

Is that the O2 sensor plug on the turbo outlet?

 

looks like the front o2 sensor plug to me

follow the white line from your o2 housing, under your spark plug cover, and back behind the valve cover. If this is unplugged, then it needs to plug into the wire that you are holding in the picture.

Is your SES light on?

 

No, this is right off the harness by the intake, by the Fule pressure silenoid. I just put a new head gasket in, so I have recently seen, messed with this plug. I think it goes to a sensor on the back of the block. Look down by the bottom of the dip stick and you should see the other end laying there. The sensor itself is towards the bottom of the block at about the middle of the intake mani. Hope this helps.

 

ya it's by the wire hareness i found where it plugs into.thanks
do you know what it does?

 

I might be way off, but I think its to an oil pressure sensor? Someone please chime in if I am wrong.

 

any body else?

 

nobody else?????????????

 

I'm pretty sure that's a thumb. Next to it are fingers.

 

i've had a really sh!tty day.... thanks for the giggle.

 

I think it is just for the EGR valve.

 

EGR solinoid.

 

that was realy corny

 

The knock sensor is on the back of the block. Your picture does not give much in the way of info about location, though.