If the ambient temp is below 50F, ignore the code if obtained during KOEO or KOER testing.

Check the connector for the IAT and make certain it's not loose or disconnected.

Measure it's resistance and post the reading along with an estimate of what the ambient temp is. I can look it up and see if it's within spec.

Steve

98 Contour SE Sport 2.5 Duratec ATX The wifey's car 89 Taurus SHO - 246K miles 94 SHO ATX - 190K 1997 F-150 5.4L ATX - The Workhorse 150K. ANY THREAD WITH "OMG" or "WTF" ETC IN THE TITLE WILL BE IGNORED!