hello im a newbe here,,
and i own a 2000 civic dx
really like the little car butt im getting check engine light
that will flash when motor is cold first start in the morning

302 and 1399 where should i start first
thanks in advance the 1399 code doesnt show up in my book
of codes and
302 is #2 injector misfire

 

code 1399 is a cylinder misfire. check fuel path, ignition leads ( wires ) spark plug for condition. If could be that #2 fuel injector itself.

 

well i got it to stop i had to removed the *** cannon type muffler it had
replaced it witha full flow muffler looks stockand flows great removed the cheap & hot as heck air intake system ,i couldnt believe somebody putt a piece of junk like this in
i replaced it with a stock setup and just used the air temp sensor i got from the junk yard with the air box
well i changed that sensor back to the one it had and all is normal and now the car pull s harder that it ever did, comparred with the cheap not so performing mods that were made so i gues the lesson here is if you cant afford to do it right dont do it

 

Thank you for the feed back, and glad your car is running good with out more trouble shooting or heavy fixing.