If the Check Engine Light illuminates, indicating a problem with the front oxygen sensor, but the sensor tests okay, reprogramming the engine's control computer should fix the problem. Then, the Check Engine Light will no longer falsely illuminate and the acceleration, particularly from a stopped position, will be smoother.
PCM software update to correct fause oxygen sensor code on Hyundai XG350
Average mileage: (–)
1 model year affected: 2002
1 person reported this problem
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or how to test the sensor? diagnosis code p0154 bank 2 sensor 1 p0174 bank2 system
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