Reduce Engine Power

[TahoeSchmo]

Scared the shit outta me!
I'm cruising along, doing about 85+ mph for the better part of 40 miles or so on Rt 80 in NJ, heading into PA...when that message pops up and I start slowing down. I pull over, let it sit for a few minutes and start back up, take off and it's like nothing happened. Been running good the past week, with the exception of code P0332, knock sensor that doesn't stay on steady although it has been staying on longer each time.

Are they releated and how much would a knock sensor cost to replace in a shop?

 

[Gzes]

Knock sensor should be about $15 for the sensor then out it on. Just look to see where its at and swap not too bad depending on engine

 

[YukonXL04]

It's really not a bad swap. Good ahead and get new intake gaskets while your at it. And replace both knock sensors and the harness. Common failure items