Joined: Jan 2017

Posts: 66

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From: imperial,ca

Hi, I’ve never did this before. But earlier today I filled my 2001 accord lx 2.3(f23a1) with too much oil. Afterwards it started smoking really bad to get the excess oil out. Well now it’s running like major crap. It’s throwing code p1399. Idles perfect and runs alright once you hard reset the code. But as soon as p1399 comes back it runs like crap. I’ve looked this up and it just says random misfire. Maybe someone could shine some light on what happened after this incident today. I really need my car to get around and to work. Please help me out with this. Thank you in advance. Hope I hear some positive stuff and not negative stuff like I’m a dumbass for putting too much oil in it. I already know that I am for doing this. I forgot to add that it’s not smoking anymore.

Joined: Sep 2018

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From: New York

Joined: Jan 2017

Posts: 66

Likes: 1

From: imperial,ca

I fixed it. I drained all the oil took out almost 9 quarts. The oil was making its say up to the top of the pistons and making it throw the p1399 code therefore throwing the ecu into a major limp mode.

Joined: Jan 2017

Posts: 66

Likes: 1

From: imperial,ca

Ok, so I thought it was running fine. It runs fine then as soon as the car gets up to running temperature then about 3 min after it gets to temp it starts bogging down more and more. Then it throws the code p1399. I haven’t checked the MAP yet but I probably need to do that. The CEL will start flashing then it really runs like crap. Maybe someone could shine some light on how I can fix this. I need my car for tomorrow. All the oil is normal now after draining it all out and re-filling it to the proper level. The car runs very peppy until 3 or 4 min after it gets to normal temp. So I know it’s not anything with the engine itself. The engine sounds fine no noises, so it has to be a sensor. But like I said it’s only giving me the p1399. Please help!!

Joined: Jan 2009

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From: New Zealand

Joined: Jan 2017

Posts: 66

Likes: 1

From: imperial,ca

I removed the egr valve yesterday and cleaned it. Didn’t even look at bad all. The car is cooling down right now, then I was gonna check the plugs since your not supposed to pull out plugs while the head is hot. I haven’t checked the map yet. I need to probably do that. If you have anything else on it let me know. When it runs good it goes up to 3,700 rpms then you can feel it start to hit a limiter. I say it runs good like that because you can actually get up to speed. After that the car barley moves, that’s when it’s running like crap. When the car is cold you can rev it up to 4,500 rpms in neutral if you wanted too. It’s when it warms up it starts all this nonsense.

Joined: Jan 2017

Posts: 66

Likes: 1

From: imperial,ca

So right now I went to go pull the plugs out and one of the wires ripped off. And then one of the spark plug wells were full of oil. So I’m thinking after it gets hot it starts conducting the spark like water would making it throw the p1399 code then making it run like crap since it’s grounding out. Maybe someone could concur on this thought. And three of the plugs were the same and the last one was different. But #1 plug well was full of oil to the top and #2 had oil to to where the plug connected to the wire.

Joined: Jan 2017

Posts: 66

Likes: 1

From: imperial,ca

So maybe someone could tell me if the cat converter works different when it hot compared to cold. My car runs great when it’s cold. But as soon as it warms up it gets very sluggish and is almost struggling to move. I’m going to remove the egr valve today and clean it and the ports. But as I stated before when I first put this post up the car was over filled with oil and smoked like a blown up freight train for about 10 minutes. Then I came and drained the oil. I really need my car by Friday at least. Someone please throw me some pointers. Thanks.

Joined: Oct 2008

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Joined: Jan 2017

Posts: 66

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From: imperial,ca

only driven a few miles. But was smoking horribly. It runs great while it’s cold. And sounds great in idle. Some people say The EGR port could be clogged and that’s why it runs good when it’s cold but runs like crap when it’s hot

Joined: Jun 2008

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From: Beavercreek, OH

Joined: Jan 2017

Posts: 66

Likes: 1

From: imperial,ca

All fixed. I removed the upper plenum of the intake manifold and cleaned it and unplugged the egr port. So I’m thinking it was close to being plugged and all that oil just finished it off. While it was off I cleaned the map and all the sensors that were on the throttle body and intake plenum. Upon starting it up it ran like crap for a little bit and I drove around and then it started running better. And after all said and done I had to chop the catalytic converter off. It was completely plugged. The car was overheating when I would put a big load on it. It was running super sluggish also and had no power. Therefore I would push the accelerator more putting a bigger load and trying to push more exhaust out making it overheat. After chopping the catalytic converter off the car runs 100% better. Now I have a super loud and annoying car. I need to get a new cat or have someone weld a straight pipe with an o2 sensor bung and a de-fouler so it won’t throw the code for the secondary o2 sensor. Here in California though you just can’t take a car into the muffler shop and have them weld a straight pipe in place of the converter. I actually need to buy a weld on converter with a o2 sensor bung. But don’t have the money to get one. Other than that it’s all good.