Engine Performance (A8)Question 102 of 120
The EVAP system is designed to:
a.Cool the intake charge
b.Filter engine oil
c.Capture and burn fuel vapors from the tank rather than venting them
d.Increase fuel pressure
Explanation
The evaporative emission system stores fuel vapors in a charcoal canister and later purges them into the intake to be burned, preventing release to the atmosphere. A loose or faulty gas cap is a common cause of small-leak codes. It is tested for leaks during OBD-II monitors.
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