So yesterday i was driving my 98 accord ex DD and i noticed that it felt like it was studdering every once in a while. Then the check engine light started flashing. when i got home i hooked it up to my code reader and recieved the following codes:

Random missfire cylinder 1
Random missfire cylinder 2
Random missfire cylinder 3
Random missfire cylinder 4
And a code P1399?

after this i replaced spark plugs and wires (the plugs came out lean) and reset all the codes. i drove the car for about 30 miles and it seemed fine untill it suddenly started having small missfires again and threw all the same codes.

Any Ideas? help would be much appreciated

 

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