nknoll

I have a 94 Honda accord ex vtec DOHC. Car sputters only when I barely give it gas. Also stutters when i am trying to maintain speed. I really don't know where to start with it. A few months ago i replaced the plugs and wires. It does have an exhaust leak. I'm not sure if thats the problem but any help will be welcomed.

Lost Again

Not a whole lot to go one here.....so with that and I'll assume no stored codes in the ECU/TCU.

Read about clogged EGR ports and what they cause - then go to the FAQ and read the "how to" clean

nknoll

I just changed the plugs , no difference. I see no engine light has came on but ill go check to see if its throwing codes.

nknoll

okay so when I jump the service connector the engine light just stays on? I'm looking for that code now...

holmesnmanny

Your problem is the exhaust leak and after fixing the leak you will need to replace your oxygen sensor that is now bad as a result of the leak. Also, you don't have a DOHC motor.

Fitz Williams

iTrader: (1)

My 94 does the same thing as the OP's. Not plugs, EGR, vacuum lines, Oxygen sensor. I figure it may have something to do with the rear motor mount. That's on the list to replace.

MAD_MIKE

If the egr ports are plugged it will not set a code. On 94/95s the only EGR code that will be set is for the lift solenoid. There is no flow monitoring.
If the car has ~100Kmiles the ports are most likely in need of cleaning. If you have emissions testing this will reduce NOx emissions. I would not use any cleaner on the ports it will just make a mess. Use a vacuum and various sizes of flat head screwdrivers to scrape the carbon/soot buildup from the EGR ports.

nknoll

I'm going to try to clean the Egr valves today and see if that helps, My Accord does have 245,000 miles on it so if it has never been cleaned that very well could be it. I will keep you guys updated.

nknoll

Well Dirty EGR passages were the problem, I also cleaned the throttle body as well. Now she's purring like a kitten and has much more power than before. BTW 3 out of 4 Holes were plugged up with carbon, thanks guys!

Lost Again

Dang, the wild a@$ guess was the issue....

midarnel1

Do you have any idea what that might be

holmesnmanny

good call, Lost Again

bogle

hunh? how would an exhaust leak cause the engine to run poorly? and why would it break the oxygen sensor? this is senseless.

holmesnmanny

Because it does. If you search my posts you will see why. I don't really feel like wasting my time.

And if the OP still has an exhaust leak before the oxygen sensor it won't be long before he starts having driving problems as a result.

MAD_MIKE

And soot filled EGR ports.

Lost Again

Thanks but you are right as well. The exhaust leak, pre-cat will cause issues and should be addressed.