2014 Silverado with p0324 code

[Skylor]

I need some help figuring out what the code means and what’s going on and how to fix it I change my spark plugs there is no knocking noise It still says knock control system error I just need some help figuring out what is it so I can fix it code p0324 I have O2 sensors codes to because of long tube headers 

Edited September 12, 2021 by Skylor

[CamGTP]

Check the harness going to both knock sensors. Make sure they are both getting power.

[Skylor]

Ok do you think it can be because of the O2 sensors 

[Mawz]

No, it's a knock sensor warning. Check them. 

[Skylor]

Ok thanks If it’s not the knocks sensor what else could it be

[shakenfake]

Then you have actual knock lol

 

But it is a knock sensor. Replace them and the wire harness.

[Skylor]

I replace both knock sensors and I’m still having a Knock control system error 

[Mawz]

20 hours ago, Skylor said:

I replace both knock sensors and I’m still having a Knock control system error 

Then you likely have an issue with the harness, not the sensors.

[shakenfake]

Yeah you are going to need to pull the intake off and replace the wires.

 

SAYING THAT

I recently had this issue. Replaced the knock sensor and the harness tested out good. Knock kept coming back. It turned out to be a motor mount or something slapping the block while driving because knock would show up whenever I hit a bump but it would never show up when driving around flat.

[Skylor]

I have longtube headers and one of the headers is against the frame

[Skylor]

I have longtube headers and one of the headers is against the frame that’s can cause the knock control system error 

[shakenfake]

Well I bet that might be what it is.

 

Did you get your truck tuned for the headers? If not then you need to. Tuners can lower your knock sensitivity because of noisy headers and valvetrains. Could help but I would say fix your wiring harness first.

[Skylor]

I had it tuned after I tuned it that’s when the knock control system error started popping up

[shakenfake]

How about run a tank of premium through and see what happens. Now you got me thinking someone got the fueling tables wrong

[Skylor]

So do you think he tuned it to run on premium