I was wandering if any body knew what the plug right below the distributer is , it threads into the block and shares the same harness as the o2 sensor , im asking because one of the wires on the plug is cut in half and didnt know how important it is, i just want to be able to get it fixed thanks for the help it is a d15b2 thanks

 

Should go to one of the temp senders.
The one just under and deep is the gauge sender and the one next to it (towards front) is the temp sender for the ecu and cooling system.

 

gauge sender has 1-wire (yellow/green) - ECU sensor has 2-wires (red/white and green/white)

 

ITs a yellow wire that has been snipped and its going into the head. my temp gauge works fine, im not sure what the heck it is. im afraid to tug on it to much, to try and get plug off but i guess i will to get a better view. thanks

 

yoou didnt notice weird temp readings???

 

I just got the car saturday and i havent noticed any so far , it comes up and stas right below halfway just like my other civics have ,

 

This sound like were not on the same page.
If it was one of the wires we are all talking about then by cutting it you would either have no temp reading at the cluster , or the car would run like *** and you would get a CEL.

Bump for pics of what were looking at.

 

now were talking, the car does seem to run rough, but im not getting a cel, or i might be ill look at the computer to see what im getting if anything and let you know thanks for the idea Toren

 

Alright i put the keys in the ignition and turn them to the start position an dlooked at the ecu and there was no lights at all blinking. so i have no clue what else it could be im going to do a tune up and then see how it goes thanksToren

 

It is the temp gauge after messing with it, it finally stopped working thanks Toren