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Toyota Highlander

Report: Check Engine Light Due to Failed Oxygen Sensor Component

Toyota Highlander Problem
7 Reports
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Model Years Affected: 2001, 2002

Average Mileage: 89,400 mi (50,000 mi - 135,000 mi)

Verified

The Check Engine Light may illuminate because a component of the oxygen sensor stops working. As a result the engine computer is unable to determine the proper ratio of air to fuel for the engine. Replacing the failed oxygen sensor should correct this concern.

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