[RickM]

Don,

Did the code come up after they were disconnected? If so, were they exposed to the elements...water and dirt?

To add:


* DO NOTdrop or use an oxygen sensor that has been dropped as this may have caused shock damage to the ceramic element

* DO NOT use any compounds on or around the sensor unless labeled as oxygen sensor friendly products

* DO NOT use impact wrench or conventional socket type wrench to install sensor

* DO NOT allow sensor or lead wire to touch exhaust manifold or any other hot component

* DO NOT expose this product to water, oil, windshield cleaner, anti-corrosion oil, grease, terminal cleaner, etc.

* DO NOT use leaded fuels, silicone or metal based additives

* DO NOT store under high humidity conditions