Never got nfo from them as to how "good" it was. A different dealer just did the error codes and diagnosed the TPS as bad, they want $315 to change it out on a $125 part. I'll get the part wholesale and change it myself and I'll see how it goes from there. They also check the plugs and said they were gapped incorrectly? So I'll do plugs tonight also.

TPS is bad to change on the 4.7, right? I did it on my 2001 4.7 GC, so I imagine a bit different with the drive-by-wire, but not bad. Which plugs should I get, copper ones right? I know on the 2001 the Platinum plugs weren't a good mix compared to the copper.