A wide band oxygen sensor is used to ________.
A) Help improve fuel economy by allowing the engine to operate at a lean air-fuel ratio
B) Help the engine meet achieve ultra-low emission vehicle (ULEV) rating
C) Help the engine achieve a super ultra-low emission vehicle (SULEV) rating
D) All of the above
Question 2
The Atkinson cycle engine design ________.
A) Uses the same four stroke cycle but delays the closing of the intake valve
B) Requires special fuel and oil designed for this type of engine
C) Operates differently than the normal four stoke cycle gasoline engine
D) Both A and B are correct
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