I got around to checking my ECU codes because the check engine light was on for a little while, ( used the paper clip method ).


I turned codes 41, 72 and 74

Thats:

41 -Primary Oxygen Sensor - Heater circuit malfunction
72 -Cylinder 2 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
74 -Cylinder 4 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire



With limited know how but excellent follow directions skills, any way I can fix this myself or should I take it in somewhere?


Any ideas?