Gary,

I still tend to think that any heated 3-wire sensor (i.e. Mustang) works well on The Bosch FI system. At least that's been my experience, As to the Babcock article, I have some reservations.

The article is written very authoritatively, but the part on "Titania Oxygen Sensors" reads very much like a "lift and polish" of other online Titania material I've seen. What caught my eye was the major error at the end, where he says:
"Rich and lean voltages are opposite from other O2 sensors. Rich exhaust mixtures create low voltages and lean mixtures create high voltages. The response time specifications are generally the same for titania and zirconia sensors."

Can't say where he got this from, but Titania voltages are NOT "opposite from other O2 sensors". The Volvo Regina Fuel System Green book (TP31003/1, page 46) describes the sensor's voltage range as varying between 0.1V and 1.2V, and clearly equates "low" with Lean and "high" with Rich—exactly like Zirconia sensors.

This obvious lack of fact-checking tends to make me question the whole piece.
--
Bruce Young
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.