Except for 1 thing. A narrow band sensor drops out of the loop as far as the ECU is concerned when exhaust gases go beyond what it can read. It either gives a signal the exhaust is a short distance from 14.7 or its signal is disregarded.
Correct me if I am wrong, a wide band sensor is reading exhaust afr's over a wider scope and still sends a signal to the ECU. Its data is included in whatever the ECU reads. I assume that data is included to determine how long to hold the injectors open.
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itsatdm screwed with this post 04-03-2013 at 02:44 PM