Originally Posted by SunGuy

Replacing the insert as Dan suggests is the least expensive way to go. Have you tried simply cleaning the insert with a product like CRC MAF Sensor Cleaner (AutoZone, NAPA, PepBoys, etc). It worked like a charm for me as the sensor wire was intact, just dirty. At $6/can, if your sensor wire is unbroken, you may want to try this first.

Bob