Ive got a 90 accord Lx auto, after about 10 minutes after car is started and starts to warm up, it to me sounds like its missing kinda like a sputter or hesitation. only does it in the lower rpms like 800 to about 2500. Doesnt matter if the a/c is on or not or if it is in drive or not. It also does it when in drive going about 55 it does it then too.

 

Pull out your plugs and wires and check them. Or you can also check your engine mount.

 

yeah, i just put brand new spark plugs in maybe 5 or 6 months ago, and have checked the spark plug wires and i will check the mounts today

 

Please read my reply on 7/8 to Accord misfire. It sounds like what I have told other people. I am a mechanic, it took me a lot of money to find out it was a simple very cheap fix. CLOGGED EGR PORTS. My 90 would run great until warmed up, and soon as it reached operating temp, it would miss, between 1200 and 2000 rpm. It costs $5 for parts, and takes just a couple of hours toi fix!! Honda charges $200 !!!!