I really do not believe that the knock sensor is actually a Delphi Product. It does come in a Delphi package but I am a little in difference. As soon as I installed the sensor, the outer white plastic just broke off. That is the reason I believe that it is not a Delphi Product.
Installed these after a cheap knockoff sensor kit threw codes. These fixed my knock sensor codes- Spend the bucks, stick with quality oem replacements like these and only do the job once.