LSUfan71

I just completed a valve cover gasket job and then got knock sensor circuit codes P0325 & P0330 when I drove the truck the first time after finishing the work. Maybe I damaged a wire or forgot to reattach something while putting things back together. I've had this truck for about a week and this was my first time working on it. I didn't know the knock sensors were on top of the engine.

Can someone give me a pic or precise location of the plugs for the knock sensors?

I recall unplugging/plugging in the injectors when handling the bottom air intake section but I don't remember anything that I thought was related to knock sensors.

The only thing I see out of order is an empty grey-colored plug located at the front passenger side of the top of the engine; it's just beneath the overhung edge of the black plastic cover on the front of the engine. I don't recall detaching anything from this plug so I'm not sure if it's part of the problem. I'm sure the problem is wiring and not the sensors themselves.

These pics show the location of the empty plug but I'm not sure if it's related to the knock sensors.



The plug I mentioned is at the front of the engine just beneath the edge of the plastic cover.



The plug I mentioned is at the front of the engine just beneath the edge of the plastic cover.

habanero

The knock sensor has a single plug for both, in about that location. The wires come out from under the intake and along the tbelt cover. You should have another side to that plug somewhere nearby, hopefully. There's pics of the sensors around

LSUfan71

Well, I'm an idiot. The other side of the plug was beneath the part that I could see, perfectly hidden. And it was the connection for the knock sensors. So I'm well now. Thank you, Sir.

habanero

Welcome, sister.

Glad it was an easy, I had a case of lead-brain the other day wrenching. It happens, helps keep us humble.