Greg.

You can get an O2 sensor (Digijet) from Ron at the Bus Depot for $ 29.95
plus $ 3.75 for Priority Mail shipping.  I think Jim at The Old Volks Home
has them for about the same price.  They are each great to deal with.

(Note to other Listees: O2 sensors for 86 and beyond (Digifant) cost $
10.00 more.)

 Several Listees have indicated that these are straightforward to replace,
but sometimes  are stuck tight, which causes varying degrees of difficulty
in rust eradification.

Good luck.

Budd Premack
87 Wolfsburg (soon to be for sale),  86 Syncro, 84 Vanagon (son's)
73 Super, 64 Bug
Minneapolis, MN (Land of Sky-Blue Waters)