2002 toyota camry xle 2.4
some chipmunks chewed 2 wires close to the engine on the right side, down some with 1 red wire and 1 green wire. the auto zone guy said it is an "hc6 sensor." but I can't find anything about this anywhere. can anyone help identify? thanks
ps I my daughter used it. the "check engine light" came on. she did not get the code number, though.