Ok so it all started on my way home my car started letting 3rd gear run long and make a kind of whistling noise around 3500rpms but was running fine. Next day on the way to work same thing except the whistling sound was happening at 3000 rpms, then after 20mins of driving it had total power loss and started jerking real bad. I limped it back to the house and hooked up. It threw all cylinder misfire, 02 sensor, EGR valve, and IAT sensor. I waited until the next day cleared the codes then rescanned it. This time all I got was the IAT. After replacing it the car still does the same thing. Starts fine idles fine for a couple minutes then gets really sluggish. Any suggestion on what to replace next?

 

Wrong forum, should be in the 01-05 Civic section..........That being said, sound like a clogged cat,

 

Do any maintenance?