Last post on Dec 07, 2013 at 2:14 PM
You are in the Honda Accord Coupe
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Honda Accord, Coupe
#20 of 24 Re: 2009 Honda Accord Misfire [drdumais]
Aug 14, 2013 (2:47 am)
I'm reading different diagnosis with all the same problems on this message board. The problem is this. When the engine switched down to Eco mode, two cylinders shut down to save on fuel mileage. I first noticed foul out plugs at 39,000 miles. The plugs were replaced and the vcm was updated. Was told it fixed the problem. I'm now at 69,000 miles and guess what, same problem. Here is what they don't want you to know.....
When the engine goes into Eco mode the two cylinder heads shut down but the fuel injectors are still dumping fuel into the heads. By dumping raw fuel into the head with out the cylinder firing causes the fuel to be mixed with oil. This gives you a rich fuel/oil mixture causing the engine to run rich and burning the oil at a greater rate. Also burns out the spark plugs. By updating the vcm with newer software only reduces the amount of fuel released from the fuel injectors when switching to Eco mode. The problem will still exist but now your plugs will foul out every 30,000 miles instead of every 15,000 miles.
Having the knowledge of the combustion engine basic operation helps when dealing with the service centers. My block if being replaced due to damage done by misfiring. Hopefully this helps. And no the vcm cannot be shut off. The engine was designed to work with Eco mode.
#21 of 24 Re: 2009 Honda Accord Misfire
Aug 14, 2013 (2:56 pm)
There is no "fix" as the problem is with the VCM technology and Honda can't/won't deactivate the VCM. The big issue isn't even that the spark plugs are fouling, which is irritating enough. The real issue is that oil is getting into the cylinders, wrecking them over time while the engine burns enormous amounts of oil, much of which likely happened without the driver's knowledge, doing further engine damage. The solution offered quietly by Honda seems to be to replace the lower engine block, typically charging the owner $500 of the $4,500 bill. This is often after a number of "oil consumption" tests. Honda Motor Corp's position is that it is normal to burn up to 1 quart of oil per 1,000 miles, which is laughable. In reality, the lower engine block replacement only "kicks the can down the road" as the root problem remains and the issue will rear its head again. The software fix doesn't work, at least it did not do so for me. I had the piston misfire on cylinder #3, got the software update and was back again 3 months later with the same issue on cylinder #4. After extensive research on various forums like this one, I decided to get out of the car. I challenged my dealer to make me a really good offer on a trade, as I could not bring myself to sell the car to some unsuspecting buyer, and then I demanded a really good offer on a new 2013 4 cylinder E-LX Accord. I got $16,200 for the 2009 V-6 (No Nav) with 74,000 miles and bought the new Accord for $25,000 with free rubber floor mats and a cargo net. I financed the difference for 24 months at 0.9% and got $500 back from Honda Credit Company. I am so glad I did. The new Accord is far superior to the old model and I don't miss the V-6, (I would never drive another Honda VCM engine again). The car is much more refined, the seats are comfortable and the car is much quieter. I thought I'd hate a CVT transmission but to my surprise, I don't. The most important thing is the peace of mind, I am no longer waiting for the engine light to come on and for the car to start bucking and kicking due to another cylinder misfire. I am not happy with Honda Motor Company, but my dealership really stepped up to make a bad situation much more tolerable. Good luck.
#22 of 24 See #19 above - Vu Du Man
Dec 05, 2013 (5:24 pm)
Vu Du Man is back! I just went over 125,000 miles and I have to same problem again. I'm taking my car to only Alliance Honda which is the only dealership in town tomorrow. Stay tune, I'll keep you posted.
Dec 06, 2013 (6:32 pm)
DTC PO 304, 305, & 306 showed up again. Dealership informed me about a recent service bulletin related to Soto et.v. American Honda Motor Co. Inc., Case No. 3:12-cv-1377-SI (N.D. Cal.) which extent warranty on the power train on all 2008-12 Accord V6 A/T to 8 years with unlimited mileage from the original date of purchase. The Service Bulletin number is 13-078.
I left my car at the dealership and they will be performing the fixes outlined in the bulletin noted above.
See www.enginemisfiresettlement.com or call (888) 888-3082
#24 of 24 Class Action Settlement
Dec 07, 2013 (2:14 pm)
Your prayers have been answered. See thread "class action". Every VCM repair (with proper documentation of course) is covered IF YOU FILE WITH THE COURT BY APRIL 10, 2014. Everybody gets an 8 year warranty against this problem.