Won't accelerate?
 

I just bought a 2001 Civic Lx (automatic coupe) and it doesn't want to accelerate past 20mph. i cleaned out the cat (it was a little clogged) and it was doing okay for a few days but the problem is persisting. any ideas?

it mite be in limp mode you nedd to scan it for fault codes they do it free at most car part stores.