PCM software update to correct fause oxygen sensor code on Hyundai XG350

Submitted by Vehicle Owner · May 29, 2025
Published by RepairPal

Problem overview

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.

5 people reported this problem
2 comments
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Hyundai XG350 vehicles with this problem

1 model year affected
Average mileage: 106,377 miles
(62,755 - 150,000)

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