[ch944]

Cold start valve, auxiliary air vale,idle stabalizer, after this week I think they are one in the same. Anyhow resistance should be between 20-55 ohms on the 2 wire. Also check your engine temp sensor. O2 sensor only comes into play after the car is warmed up. While cold the dme is getting it's info from the engine temp sensor. Haynes, chapter 4!

CH