1998 Honda accord

This could be a lot of different things. When does this issue happen and does this go away or get better? If so, what has to happen for it to get better?

Here are some guides that we need to go through that will get us started:

https://www.2carpros.com/articles/engine-has-low-power-output

https://www.2carpros.com/articles/symptoms-of-low-engine-power

https://youtu.be/U1RoG3I-Oww

Let us know what you find with this material and we can go from there. Thanks

I think I may have solved the problem. I took the up stream oxygen sensor out then started the car. Rev it up and seems to be fine except for the noise. So I took my cat out and it was all broken in pieces I replaced it with a straight pipe. And the car drives fine now.

But it only rev to 4,000. how can I fix this problem?

Sounds great. Clearly that will not pass emissions if you have to have that tested so just don't forget that you removed it before you go. Clearly a restricted exhaust is going to steal power.

As for the revving issue we actually need to get a new post started for that. We need to keep each post to one topic so that when others have each issue they can find it. They won't find the solution to another issue if it is under a different topic.

https://www.2carpros.com/questions/new

Thanks for coming back to update us and if we can get that new post started, we will figure this out as well. Thanks