Voluntary emissions service campaign: theta 2.0L t-gdi ulev logic improvement for emissions (SC205)

Bulletin number

SC205_TSB

Component

Engine and engine cooling

Summary

VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA 2.0L T-GDI ULEV LOGIC IMPROVEMENT FOR EMISSIONS (SC205) - This bulletin provides the procedure to update the emissions-related logic of the Engine Control Unit (ECU) on some 2016-2020MY Optima (JFa) ULEV vehicles, equipped with 2.0L T-GDI Theta engines, produced from April 21, 2015 through May 22, 2020, in order to improve fuel quantity learning to decrease the deterioration of the rear Oxygen Sensor.

Owners of these vehicles have filed 964 complaints in the engine category.