Why is my car acting funny? It does not seem to get the same amount of power that it used to?

Question

I have asked a question before about my 98 Honda Accord LX 4cyl. When driving up hill and trying to go as in speed up, the car acts like it is getting now p ower and it doesn't want to go. I had the computer ran and there were some error messages that had to do with the cylinders misfiring and something to do with the catalyst. Well I took advice from here and changed the spark plugs, spark plug wires, distributor cap, and the rotor button...and it still has not fixed the problem. I was wondering if anyone knew what would cause this other than the above mentioned things. I do not think it is the distributor I actually have a feeling that it is the catalytic converter. If anyone has any advice I would greatly appreciate it.
Thanks

Answer 1

Does it seem to severely run out of gas on a long hill, as in a marginal fuel filter. Cat cons can clog, esp. when the engine is running crappy. How about an Oxygen sensor? Sometimes it's cheaper to get a good diagnosis rather than swapping lots of parts. Or, these things can be tested.

Answer 2

I had that problem last fall. I did the tune-up, fuel injection booster/cleaner etc... I finally broke down and took it into a garage. I was a bit mad at myself to pay the mechanic all this money to have him tell me I needed a new PCV valve! Something I should have figured out from the start! Also check your vacuum hose. A small whole can cause this as well.

Answer 3

Have you checked your air or fuel filter? You didn't mention them. The engine needs proper fuel air mixture to run properly. Either could cause a loss of power.

Answer 4

Change your air filter.... you probably need a new cat converter, your could be clogged.

Answer 5

(for a manual car) If it has no power but you can hear power it is the clutch and you will need a new clutch.