OK here is one for ya. I noticed a pattern. My car while at steady speed sets off the knock sensor to read 2.7 every 15 seconds. its like clock work. Cruise and it goes off at 2.7 let off the gas and it goes to 0. Cruise again...15 seconds 2.7 kr. if you dont let off the kr counts it self down but once it hit 0 and you wait 15 seconds it does it again. What is my car telling me?

 

did i put this in the wrong section?

 

No, I'd say its the right section ... unfortunately that's got me stumped too.

 

Could be a flaky knock sensor. Any DTCs logged that might indicate that?

 

No dtcs. I wonder if it can be a coil...I always thought they were suspect.