Inspect your spark plugs as described in chapter 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way.
Kia Cee'd JD Service Manual: Repair procedures
Teaching Procedures
1.
Key Teaching Procedure
Key teaching must be done after replacing a defective PCM (ECM) or when
providing additional keys to the vehicle owner.
The procedure starts with an PCM (ECM) request for vehicle specific
data ...
Kia Cee'd JD Service Manual: Relay Box (Engine Compartment) Repair procedures
Inspection
Power Relay Test (Type A)
–
Do not use pliers.
–
Pliers will damage the relays, which could cause the engine
to ...