Engine/Transmission (1998.5 - 2002) cleaned IAT sensor

[VolsFan]

Hi, just cleaned IAT sensor after noticing my fuel mileage dropping. It was covered with a wet sludge. Cleaned it real good. Is that anything I should be worrying about? The old 99 and my dads 99 I cleaned a little while ago were nowhere near as dirty.

 

[Bob4x4]

Might want to take a peek at your cac hose near the turbo

 

[davemac]

When you have an exhaust brake your AIT will get dirtier faster.