P0330 knock sensor B fault

[55Trucker]

Hi everyone. I have a 2019 Ram 1500 Limited with the 5.7L engine. My check engine light came on, and I pulled a P0330 knock/combustion vibration sensor "B" circuit failt a couple of days ago. Can someone please tell me:

1) How many knock sensor there are on this truck, and where they are?
2) Is this easy to replace?

 

[Brahmajoe]

Hi everyone. I have a 2019 Ram 1500 Limited with the 5.7L engine. My check engine light came on, and I pulled a P0330 knock/combustion vibration sensor "B" circuit failt a couple of days ago. Can someone please tell me:

1) How many knock sensor there are on this truck, and where they are?
2) Is this easy to replace?

Do your run 89 octane?

 

[55Trucker]

No, 87, but I have done that for the 5 years I have owned the truck. Before the CEL came on, I was averaging just under 17mpg. With the CEL on, about 14. So it would seem to me that it is not the fuel, that something broke. But I get your point though.

 

[UnloosedChewtoy]

Next time you fill up, do a higher octane (91+ maybe, so it mixes with the old fuel and raises overall octane). This would rule out a bad batch of gas if the CEL continues.

Otherwise, I know the sensors for the 4th gen 5.7s were fairly easy to get to and replace from under the truck. Assuming the 5th gens 5.7 are probably the same. This video shows you the locations of the knock sensors for the 4th gens, the link I pasted below fast forwards you to the sensor 2 part.

 

[55Trucker]

Thank you!

 

[55Trucker]

I just wanted to report that the video UnloosedChewtoy posted is indeed accurate for the 2019 Ram 1500. I replaced thbe passenger side sensor (#2), drove a bit and the CEL went away and the fuel economy increased to where it was before the sensor failed. Thanks again for your help!

 

[UnloosedChewtoy]

I just wanted to report that the video UnloosedChewtoy posted is indeed accurate for the 2019 Ram 1500. I replaced thbe passenger side sensor (#2), drove a bit and the CEL went away and the fuel economy increased to where it was before the sensor failed. Thanks again for your help!

Thank you for coming back and letting us know! Glad we helped.