I have 2003 Acura RSX Base (Automatic). I recently changed my Air Intake Hose
and also cleaned all electrical connectors and PCV Valve in the car.

Now the car throws the following Code:

P0325 (Knock/Combustion Vibration Sensor 1 Circuit Bank 1 or Single Sensor)

The code keeps coming and going. This car had OEM Knock Sensor installed last year.
So, it probably is not the Knock Sensor but some electrical connection to it which probably
I didn't connect properly. FYI, it had also Spark plugs, coils, O2 Sensor, Catalytic Converter
replaced too last year.

Can one point me to which is the related connector on the engine diagram?

Many thanks in advance!

 

the knock sensor is the electrical sensor...on the J-series engine, the knock sensor is buried beneath the intake manifold and it's runners.

the k20 - the knock sensor is located underneath the intake manifold.

 

 

I had replaced Knock Sensor last year, so most likely it is not the issue. I guess after cleaning electrical connectors, I didn't connect one of them properly and that connector is related to Knock Sensor. Can you please point me to which connector it might be?

 

yes, the knock sensor.
the electrical component/connector clips onto the knock sensor.

 

 

Thanks for your post again. From top of the engine, where can I find other end of the connector which probably I cleaned and left loose?

 

attached to the wiring harness very close to the knock sensor

 

at 4:10 you can see the wire near the starter

and it's actually apart of the engine wire harness, meaning you didnt forget to plug it back as it can't be unplugged at all.