I have looked at numerous websites for information but nothing has helped me yet. I tested the old sensor and it seemed to be defective because it wouldn't read higher than the recommended 1.6 ohms, so I got a new one and installed it after checking for wiring issues. I tried disconnecting the battery cables to reset but that didn't help. I can't erase the code with my OBDII reader. I haven't tried driving it since it popped up in my driveway. My gauge panel shows the check engine light and... P0073 ambient air temperature sensor