I am working on a 2004 LS 3.9L for my sons friend. The car keeps going in to ETC fail safe always at 65 mph.As of right now the only codes in the PCM are P1000 and the P2106.
The car came to me with a bunch of issues, codes and parts. He wanted me to replace the TB, all 8 COP, plugs , 1 wheel...