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Car Forum / Ford / Ford Explorer / January 2005Codes 171,174,153
New Oxygen sensors.... An electronic check shows that there is no voltage coming from both sensors forward of the cat. I assume that you meant that there is no voltage at the oxygen sensor connectors? The sensors themselves do not generate any voltage. > New Oxygen sensors.... > > An electronic check shows that there is no voltage coming from both > sensors > forward of the cat. Well there better be some voltage or something is wrong. O2 sensors do indeed generate a voltage like a battery depending on the mixture. So either the output leads are shorted out or something else is is wrong. Very unlikely new sensors are NG. So maybe mixture is very lean all the time or ??? r/Jerry > New Oxygen sensors.... > > An electronic check shows that there is no voltage coming from both > sensors > forward of the cat. O2 sensors do indeed generate a voltage like a battery use a dvom and check this out > Well there better be some voltage or something is wrong. O2 sensors do > indeed generate a voltage like a battery depending on the mixture. So either [quoted text clipped - 7 lines] > > sensors > > forward of the cat.
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