Hyundai Repair: engine light on, Code 1134 displayed?, hyundia sonata, o2 sensors

Question
engine light went on  my 1999 hyundia sonata v6, 2.5 engine. no issues with the car running conditions yet. put a scanner to my car and code 1134 showed up. What is that codetelling me.

Answer
Hello Thomas,
P1134: Transition time problem O2 sensor bank 1 sensor 1.

Call your dealer to check if your vehicle has any outstanding campaigns.They will be able to check it with your vin number. On 1999 Sonata vehicles they had a campaign about replacing front O2 sensors and updating the engine control module software for O2 sensor codes.. If your vehicle's campaign has not been performed ,regardless of age and mileage , it should be covered by warranty. Before you replace any parts , check that first.