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Hyundai XG300 Problems

PCM software update to correct fause oxygen sensor code on Hyundai XG300

Problem Description and Possible Solution

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)

Hyundai XG300 Vehicles With This Problem

RepairPal Verified
Average mileage: 120,000 (120,000–120,000)
Engine affected: 3.0L V6
1 model year affected: 2001
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Brake problem? Or maybe a faulty head gasket cylinder?
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