Hi, if anyone is out there that can help me with codes. All was well until my son put regular gas in it. Then it started jerking, flashing light the one I that is not good. We put dry gas in it changed all the plugs still a bit better but not drivable when changing the plugs which was hard we noticed the wires are cracking but I didn't have those yet and really not looking forward to it as I have that secondary pain in the butt air thing there. Now my dad was a mechanic and wish I would have paid attention more because I need this car going and he is gone now. If anyone knows what I should start with least amount of work.But if It looks like I will need new cats ( can I do that myself?) . My codes are. Thank you
P1590
PO130
PO171
P1171
P1415
P0139
P1300
P0301
PO300
PO306
PO305

 

Replace your coil packs ( rock auto name brand bosh cheap )
replace your wires 8mm
thermostat
pcv valve mod Hyundai part
fuel purge valve

just follow disco mikes maintenance list


all these items are here just search to get the know how to job done

 

Thank you very much, redwhitecat!