Chip will be easy to tell -- you will likely have to remove the
PCM (unless the black plastic cover is missing) This isn't that tough to do, just tedious.. it requires removing a couple screws in the firewall from the engine side - then you can remove the
pcm and cover (may be a few extra screws, as I cannot remember off the top of my head) and there should be NOTHING attached to the end of the
PCM (there should be a small black cover over where the chip would be) If you remove that cover, and the contacts are not completely and very well covered with silicone, then it had been chipped...