Hello, I need help. My Girlfriends Honda has a few problems. Its the 3.0 V6 engine.

1- Codes P0300B, P0301B, P0302,P0304B, P0305B, P1399.


2- About once every two months the car doesn't want to start, key is turned all the way on and engine wont turn. This only happens with the engine warm.

3-After a few tries it'll start but the RPM's are very low, and as soon as you put it in DRIVE the engine stalls. You have to start it, give it some gas, and put it in Drive to get it to go.

4-After you drive it like mentioned above, it goes away and doesn't come back for about two months.

If this has happened to you or someone you know, please let me know on how you were able to fix it. Thanks.

 

P0300B= mirefire
P0301,2,4,5B indicate what cylinder
P1399 = pending misfire code

Check your EGR valve and go from there. Check grounds. Check plugs. Check ignightor.