i took of my im lat night and forgot to unplug a sensor and it broke. it goes right under the i.m into the back of the head can any one tell me what this is i cant take a pic of it due to the location but if any one knows what it is off the top of your head i would like to no what it does....i just put it back together with gasket maker to get me by lol car drives fine for now. thank you for the help sorry for the lack of info its kinda hard for me to explain it.

 

Knock sensor, get a manual, too simple of a question to be asking here and have your wallet ready...

 

so i guess thats why it did not change how the car ran

 

If you car goes to knock - you won't know now.


You need that sensor as a precaution.

 

^It only works in low and mid rpm range, it wont protect a car being driven hard at 7-8k, you can still have detonation with it just now you'll throw a code and no more VTEC until you fix it.

 

you won't notice much out of a broken knock sensor. But im sure if you drive around with it like that for awhile it's bound to throw a CEL, and possibly run in limp

 

You must have gotten lucky if only the housing broke off the knock sensor and you got it back together. Usually when the knock sensor breaks, you ruin the disc inside and it throws a CEL and puts you permanently into limp mode. They're about $100 for the sensor when you do replace it.

 

Try around $160, and that was with employee discount from the dealer... D=

 

wow well thank all of you for the info. i hope it holds up lol

 

just go to a junk yard and pull one off the same motor. 10 bucks.. or stick it in your pocket..

 

it could also throw the timing off after awhile if not replaced

 

really well what if i have a chipped p28 that has the knock sensor removed or w.e it is they do to it that the ecu does not use the sensor.

 

I've heard of people in like civics with H swaps overriding the sensor...you might be in alright shape but you're still taking a gamble. Im assuming it's not throwing a CEL then? i'd prob just replace it, do what marlin said just grab one from a junkyard or something for cheap.