Hi, first off ive searched and searched. So dont be that ****. Im in the process of going na-t. And on a plug today between the starter and lower intake runners theres a sensor i accidentally pulled the wire out of this plug to the sensor. If anybody can tell me what this is and if i need it thatd be great.

NOTE: I HAVE REMOVED EGR COMPLETELY SO ITS NOT THAT.

I also do not have a picture but if you have a pic of what you thibk it is i could confirm it. Thank you to all who help.

 

on that side of the block there is the 2 knock sensors, oil level, oil pressure. I would think its the 2nd knock sensor. Is it just 1 wire?

 

There's a couple there on my engine. If it's blue it's the vacuum valve for the egr. If it's orangish then it's the vacuum tank. If it's small and gray and on the oil pan, probably oil pressure sensor or switch. If it's on the block it's the knock sensor. I can also provide part numbers and pictures if need be.

 

Thanks guys, it was the 2nd knock sensor.