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  1. B

    P0301, p0302, p0304, p0305, p0306, p0300, p1399...

    A little update for an old thread. I hope it can help someone. My problem turned out to be a problem with the rings in the valve cover that go around the spark plug tubes. When I did the valves, I wasn't as careful as I should have been when reinstalling the valve covers. Oil was getting...
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    Revving at idle

    I'm not sure why it's low, but know it's not a good thing. I only discovered it was low earlier last week when parked and idling, it would spike a temp. It happened one time, I drove home and checked the coolant, which was quite low. I'm going to go pick up a cylinder pressure tester and start...
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    Revving at idle

    I'd have to check. I get off work late tonight, but I'll look into this and get back to you.
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    Revving at idle

    Thanks for the reply. I had to, just a few days ago, add a good amount of coolant to the system. I thought I had it bled properly, but it wouldn't be surprising if it wasn't perfect. About bleeding the system and rev problems; as I'm bleeding the system, how long should it take before the...
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    H23A P28 idle surging!

    Good to know. I've got an idle problem after topping off low coolant. I'll have to look into this.
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    Idle Surging, Code P1259, please assist!

    I've got a surge problem pretty shortly after topping off the coolant system. Why/how could this have an effect on the idle?
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    Revving at idle

    Started the Honda up this morning and things went awry. When I start it, it starts to revs up and down. See video. I'm not even sure where to start. Has anyone else ever seen this? What could it be? Any help you can provide is appreciated. https://www.youtube.com/watch?v=G-73eoBC2PQ
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    Oil in the spark plug tunnels?

    Changed the seals and cleaned out the tunnels and still had a problem with misfires in cylinders 1 and 6. Picked up new coil packs for 1 and 6 and all is back to normal. As it turns out, cylinders 1 and 6 were the only ones without oil down them. Go figure.
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    Oil in the spark plug tunnels?

    Probably. I certainly didn't pay as much attention last time as I did this time getting those seals on properly when reinstalling the valve covers. The back side, facing the firewall, was a PITA.
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    Oil in the spark plug tunnels?

    Yes. I took the valve covers off last night and the seals are the culprit. 4 of 6 were shot.
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    Oil in the spark plug tunnels?

    Just pulled a coil from the backside. Here's what it looked like.
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    Oil in the spark plug tunnels?

    Not that you can tell what's going on inside with a picture of the outside, but here's where I'm at. You can see there was enough oil in the middle plug tunnel that it leaked out and down onto the exhaust shield. Let me know what you think. Thanks.
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    Oil in the spark plug tunnels?

    Been having some problems with my 3.0L '02 sedan having random misfires. It just recently got a lot worse. Took the intake plenum off to clean the EGR ducting and it looked good. Started to take the coil packs out and a few were sealed/air tight in the tunnels. I pulled them out and they had a...
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    P0301, p0302, p0304, p0305, p0306, p0300, p1399...

    Bad or dirty mass air flow sensor?
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    P0301, p0302, p0304, p0305, p0306, p0300, p1399...

    Things are getting worse. Still has the sputter like in the video I posted. The sputter is really effecting the performance. From idle to 3k-3.5k I can really flog it and get a very weak response. Once it spins up to 3-3.5k it really goes like it should. I talked to a local auto parts store...
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    P0301, p0302, p0304, p0305, p0306, p0300, p1399...

    Still got "problems." It starts up, idles and runs but there is an irregular sputter. You can really hear it at the exhaust, but under the hood it sounds fine. In the car, you can feel the little sputter. When it gets revved, you can feel it at the beginning. As it revs up it smooths out. All...
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    P0301, p0302, p0304, p0305, p0306, p0300, p1399...

    Thanks for the reply. A few years ago, I had an EGR code come up with no misfiring. I took the intake off and cleaned the ports, like you mentioned, except I didn't use a drill. Everything worked out and no problems since. If it comes up again, I'll take the intake off and get the carb cleaner...
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    P0301, p0302, p0304, p0305, p0306, p0300, p1399...

    Spent $58 on a new EGR valve and she's back to purring like a kitten. Thanks for all the info that people provided here.
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    P0301, p0302, p0304, p0305, p0306, p0300, p1399...

    The coils I bought weren't OEM. Here's what I purchased. The EGR sounds more like the problem. Like I said, a cylinder or two misfiring may have me thinking a coil, but 5 all at the same time makes me suspicious of something systemic that all cylinders have in common. This is new to me...
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    P0301, p0302, p0304, p0305, p0306, p0300, p1399...

    Thanks for the reply. Here is my original P1399 problem. I was a bit discouraged I didn't get any replies, but glad I got the problem solved. Before doing the coil packs, I replaced all the plugs. They were well overdue. The plugs I installed are NGK V-Power. I may have been a bit hasty...
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    P0301, p0302, p0304, p0305, p0306, p0300, p1399...

    Needing some input on a gaggle of codes that just showed up. A little history: 2002 3L Accord EX 4dr 214K mi No mods New timing belt at 130K mi, 9 years ago I did plugs, coil packs and adjusted valves at 211k mi that got rid of a P1399 code that was rough at idle and running. Now, it...
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    P1399 help.

    Changed out the coil packs and now she purrs like a kitten. After having my car down for 3 days, it's nice to have her back on the road. Baller
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    P1399 help.

    No Help? I just got done doing the valves. It now runs a bit more smoothly but still regularly rough. Still throwing the P1399 code. What next? Let me know. Baller
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    P1399 help.

    My car is an '02 Accord 4dr EX 3.0L with 211k mi on the clock which I've owned since new. Nothing significant to mention. It's really been a pretty boring car, which is a good thing. I change oil and tranny fluid when I'm supposed to. I've also done the spark plugs. New timing belt at 120k...
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    High Mileage 6th Gens

    New to the forum. 203k on an '02 EX sedan. Entirely stock, completely original drivetrain, bought new. For the past five years it's been a second car and doesn't get nearly the miles it used to.

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