I have an issue with my 2002 honda accord. Yesterday, I scanned the car since it was misfiring and got the following codes po300, po301, po302, po303, po304 plus po1399. Took it to the mechanic and the spark plugs were changed, fuel pump changed, fuel nozzles cleaned, EGR was cleaned. Cleared the codes.

Today, it started misfiring with the po1399 code and o2 sensor code only showing. Please what can I do to resolve this issue.

Luvinhubby, Gazzuzz, Kingreign and other car experts. Please help

ArticleBeast:
I have an issue with my 2002 honda accord. Yesterday, I scanned the car since it was misfiring and got the following codes po300, po301, po302, po303, po304 plus po1399. Took it to the mechanic and the spark plugs were changed, fuel pump changed, fuel nozzles cleaned, EGR was cleaned. Cleared the codes.

Today, it started misfiring with the po1399 code and o2 sensor code only showing. Please what can I do to resolve this issue.

Luvinhubby, Gazzuzz, Kingreign and other car experts. Please help

Is this Honda a v6 or i4?

kingreign:


Is this Honda a v6 or i4?

i4

ArticleBeast:

i4

Are you sure the plug cables and distributor cap are in good condition, no cracks, no tears and aren’t mixed up?
Did you buy genuine plugs?
We’re the injector spray pattern okay and non drips?

What is the state of your fuel pump and filter?

kingreign:


Are you sure the plug cables and distributor cap are in good condition, no cracks, no tears and aren’t mixed up?
Did you buy genuine plugs?
We’re the injector spray pattern okay and non drips?

What is the state of your fuel pump and filter?

I noticed tear in the plug cables but we wrapped it with black cellotape. But from research the po1399 code is usually when solved by valve adjustment. The injector spray pattern was okay and the distribution cap was in perfect condition. Brand new fuel pump and filter