nikothegman2003

so i have an 04 accord MT (2.4) bought it new now has 164,000 on the clock original clutch and the cel comes on every now and then w the same problem, every gear i rev up to 2600-2800 rpm while driving the gas cuts and i have to change gears or wait till it drops to 2400 and then press the gas... Only does this for a couple days then it stops, this happens every 2 months or so and it helps the problem a little when i put 93 octane (super) ..any ideas what it is and how to fix it?

p.s. just joined the site

redbull-1

Try to get the trouble code read when there is a CEL, this could help isolate the problem. Even if there is no CEL right now, there may be a pending code.

At some Autozones they will read the code for no charge.

Once you get the trouble code(s), post them on the forum. Sometimes there are common problems and fixes with certain codes.

Targa250R

^ What he said.

Chances are that the code is oil pressure or VTEC related. If it's a P1259, you may be low on oil. If the oil level is correct, you'll ned a new VTEC spool valve. If it's P2646 or P2647, you'll need a new VTEC oil pressure switch.

Any time this happens, check the oil regardless to make sure the sump is full. These engines are known to burn oil, and a very low oil level will prevent VTEC from engaging, hence the rev limiter at low RPM.

Are you using 5W-20 or 5W-30 oil? If not, you should be.

nwboson

I know this is an older thread but thought I would post my experience with cutout at 2800 RPM on my 2007 Accord. Super cheap fix - so please read on.

I went to Autozone to have them read my code: it was P2646. Indicates a problem with the Rocker Arm Oiling provided by the VTEC solenoid and VTEC pressure switch.

My oil level was low: I added an extra quart. No help. I reset the error code by disconnecting the battery for 30 seconds. As soon as I went over 3000 RPM for a seconds, the P2646 code would show up again.

I called the local Honda dealer: the VTEC gasket was available for $4, the VTEC oil pressure switch for $85 and the whole VTEC assembly for $125.

So I removed the VTEC assembly. Takes ten minutes: super easy. Only 3 bolts, used a 10mm extended socket with 3/8" ratchet. Tons of room to get in there on a 2007 Accord 4 cylinder.

And there was the culprit. After 85,000 miles the strainer was partially plugged and gummed up. I cleaned the VTEC assembly with brake cleaner. I spent a whopping $4 at the Honda dealer for a new gasket/strainer, reinstalled it all in ten minutes, disconnected the battery again to clear the error code, and all was better.

My (baseless) opinion is that the underlying problem is the factory 'Oil Life' indicator and the Castrol GTX oil I have been using on the 2007 Accord since new. My wife has been getting the oil changed based on the oil life indicator which is typically around 8000 miles. No more of that going forward: back to 3000 mile oil changes and Pennzoil for me. Just my humble opinion, but this is the first time I have ever seen one of my engines gummed up with oil anywhere and this is the first time I have used Castrol GTX for the life of my vehicle. Maybe a coincidence, maybe not, but I'm done with Castrol.