Greetings all, 

 

 

 

My first post here, I've signed up as I need help locating the knock sensor on my I-CTDI 2.2 diesel 2009 civic.

 

 

 

The Haynes manual only says that for ALL 8th gen models the sensor is behind the inlet manifold in plain sight. However it is not. And it's not anywhere nearby as far as I can see. 

 

 

 

What's more, I can find absolutely zero info/threads/videos about knock sensors on diesel civics, total zilch. Not one mention. Which leads me to the question - do they even have knock sensors?! But they must, as the car has been throwing up the error code for faulty knock sensor and the car is displaying all of the appropriate symptoms (engine light, limp performance). 

 

 

 

Please, if anybody has experience of the I-CTDI engine, have you located the knock sensor? 

 

 

 

Thanks so much 

 

Tom 

I must admit i did not think the CDTi has a knock sensor as a diesel engine has an inherent knock from combustion and I cannot think that this could be negated.

 

What is the code you have from the system?

I presume you mean the Nox Sensor which are situated before and after your catalytic converter