"Q. Except for the connector assembly, aren't all oxygen sensors basically
A. NO. There are five fundamentally different types of oxygen sensors:
unheated thimble, heated thimble, planar, wide-band and titania. Within each
sensor type, sensors vary in the design of the ceramic element, heater
element and protection tube design, all of which affect sensor operation."
I guess I have an Heated Thimble on my 83 Audi 4000S, a Heated Thimble on my
91 Passat, and a Titania on my 88 Cherokee engine. Now I only need two
more to complete my 5! lol
BTW the website above has a link for instructions on how to install a
universal 02 sensor and also a Vehicle Part Finder link to find the univeral
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