sicoo
Seasoned Member
I was thinking the same thing, which makes me think it's either bad knock sensors or incorrectly installed knock sensors. If that was the case, the ecu would have no idea about it.I doubt there would be a TSB forthcoming because I haven’t heard of this problem in the LT4.
Most likely there is something wrong with your build specifically.
If this was happening to me, I would not track the car until resolved. I would locate a reputable tuner shop ASAP and get some logs done. Really surprised that amount of audible pinging isn’t setting a CEL. The OEM knock sensors are Uber sensitive for exactly issues like this.