>In a message dated 96-07-24 17:47:52 EDT, you write: > >>, the bosch for the '87 is around $140...[snip]... price for the '85 >>O2 sensor is about half the price of the '87 sensor. I assume that >>there must be some difference. > >I think the pre-86 ones did not have the built-in heating element. > >Jim Davis Sounds right... my 86 has the 3-wire; my 84 has the 1-wire. With that in mind, here are a few questions for those in the know: (I checked the archives, but didn't find definitive answers to these) 1. Is it possible/practicable to use a 1-wire to replace the 3-wire? 2. Will the slower warm up time of the sensor w/out the heater be a problem? (i.e., do I *really* need the heated sensor for good functionality?) 3. Do both types have the same output voltage? If I must use a 3-wire on the 86, does anyone know of a source for an equivalent but, less expensive sensor? [ the # on the part appears to be 0 258 001 051. ] Ignorantly Yours, Randy 84 Wolf, 86 GL
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