audidrvr

it is about 93 degrees out and the chart at s2central linked in the FAQ says my reading for the IAT should be right around 550 ohms. It does go there but occasionally will go nuts and jump way up high. Anyone ever see this behavior? Shouldnt the resistance stay constant?

WVUrS6

I get the CEL and code 2322 when I pull them. The CEL is intermittent, it comes and goes but does so frequently. It is constantly blinking on for several seconds then blinking out which kinda falls in line with what your test results show.

I have yet to test mine with a DMM, though I may some morning this week when my car is cold.

Funny thing is that it has been throwing the CEL for a couple of months, yet my mileage has just taken a hard hit, which is why I am probably just going to order a new IAT this week. I cleaned it about a month ago with no effect.

audidrvr

The pinouts were giving the occasionally high jump in reading, sometimes really high, and the resistor did it slightly more often the the pinouts. The last time I checked it I just did it for a sec. to see the reading, for some reason (boredom) I decided to just watch it for a sec and numbers would just randonly jump high and then come back down. I do get the blink of a check engine light every so often and it is the overboost code. From my research on this I could have found the culprit but am looking for the pros advice on it.

audidrvr

good IAT? If this comes down to an answer it would be a good one to add to the IAT testing in the FAQ.

WVUrS6

Mine doesn;t bounce, just tested it @ 70 degrees and was getting a solid steady 490 ohms

audidrvr

little. I am now thinking that it may be a weak coil. Going to have to get one of the spark tools so I can see the spark.