DEALER SERVICE MANAGER MEMO: ATTENTION: ALL KIA SERVICE MANAGERS - KIA MOTORS AMERICA, INC. WILL BE CONDUCTING A VOLUNTARY SERVICE CAMPAIGN TO UPDATE THE ENGINE CONTROL UNIT (ECU) IN CERTAIN 2012-2014 MY SORENTO, 2012-2013 MY OPTIMA, AND 2012-2013 MY SPORTAGE VEHICLES EQUIPPED WITH THE 2.4L AND 2.0L TURBO GDI ENGINES. THE SUBJECT VEHICLES’ ENGINES ARE EQUIPPED WITH A GASOLINE DIRECT INJECTION (GDI) SYSTEM THAT UTILIZES A FLOW CONTROL VALVE (FCV) TO CONTROL THE SUPPLY OF FUEL. THE FCV NEEDLE MAY EXPERIENCE EXCESSIVE WEAR, EVENTUALLY RESULTING IN IMPAIRMENT OF FUEL FLOW. IF THAT HAPPENS, AND TO PROTECT THE ENGINE, THE ECU MAY REDUCE ENGINE ACCELERATION WHILE ILLUMINATING THE “CHECK ENGINE” OR MALFUNCTION INDICATOR LAMP (MIL). THE ECU UPDATE WILL IMPROVE THE DURABILITY AND OPERATION OF THE FCV NEEDLE.