TSB - SERVICE ACTION: IGNITION COIL OR COIL RFI SPRING REPLACEMENT FOR DTC P030X (SA321) - This bulletin provides the procedure to replace all four (4) ignition coils or replace all four (4) coil radio frequency interference (RFI) springs on some 2017-2018MY Forte (YDm) 2.0L MPI vehicles, produced from May 16, 2017 through September 7, 2017, which may experience a malfunction indicator lamp illumination (MIL) ON with DTC P030X (P0300, P0301, P0302, P0303, or P0304).
