I have a 7e8 and 7e9 code on my kia Sedona what d do next

SOURCE: kia sedona 2002 error code P0118

P0118- (ETC) Engine Coolant Tempature sending unit, high input. Your ETC is either faulty or has a poor wiring problem. Thank you for using fixya.com

SOURCE: 2004 kia sedona #2 MISFIRE

Just had the same issue with mine....turned out to be the coil.

SOURCE: how to solve KIA Sedona audio code

notify dealer will need radio number radio code is a security code

SOURCE: 2005 Kia Sedona Fault Codes

you can try to read the fault codes with ELM327 V1.5 scanner, and know where is the problem, and then you can fix the problem. It is cheap and easy to operate.

SOURCE: install bearn for 2002 kia sedona yes

GO TO SEARS N ROEBUCK AUTO ALIGNMENT CHECK IS FREE THEY WILL TELL YOU WHAT PARTS TAKES 30 - 45 MIN.