Hey Heather, do u have any pinging problems (sometimes) ??
I did get a code like this before... never really fixed.. and I've been having pinging problems FOREVER !!
It is getting warmer again.. and the pinging gets worse.
I wonder if it is related to the EGR valve.
i did post about EGR and pinging at old CEG forums and it was a MESS.
some sid they were related and others disagreed.
Let me know if u have any pinging on a hot day, going up a hill at high RPMs.