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Wideband? WTF?

Old 12-08-2005, 12:31 PM
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Default Wideband? WTF?

Can someone explain wideband to me please...I am not sure If I am understanding what it is...
Old 12-08-2005, 12:38 PM
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stock O2 sensors are narrowband.. only accurate at stoich (14.7:1 in Gasoline vehicles) ... further you get from stoich the less accurate

Wideband is accurate across the board... it can accuretly measure 10.0:1 AFR or 20:1 AFR

Narrowband = 0 to 1 volt (1000 millivolts)
Wideband = 0-5 volts (5000 millivolts)

But the basic thing is wideband is accurate everywhere, narrowband is only accurate at stoich


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