So after I bought the car last month on the first week my CEL came on. I decided to change the spark plugs since they looked toasted. After about a week and a half the light came on again with multiple codes on misfire. I took it to Honda and they said nothing is wrong with it since they checked compression and switched around the ignition coils and spark plugs. After 2 weeks of no light the light decided to come back on again. What do I do now.

 

Borrow an OBDII code reader and see what specific error numbers are coming up?

 

before going to honda it gave me p0301 p0304 p0300 and p1399