Problems with the accelerator pedal position switch may cause the Check Engine Light to illuminate; an improved switch is available to fix this problem.Google+
Car Problem Reports
Hyundai Azera Check Engine Light Due to Faulty Accelerator Pedal Position Switch
Hyundai Azera Problem
Average Mileage: 40,592 mi (14,468 mi - 66,717 mi)
Visitor, 2006 Hyundai Azera, 66,717 mi
TPS failed and required replacement. Part $45, Labor $250. Hyundai would not cover it.