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.
3 people reported this problem
Verified for the Lexus LX4706 reports
1 answerDecember 18, 2014
Verified for the Lexus LX4708 reports
Verified for the Lexus LX4703 reports
1 answerJanuary 30, 2011