Hello, I am new to this forum. I have actually had this same problem in my 2005 Toyota corolla. It very occasionally has a low idle. It has only happened several times and I have had it for 2 years, so it's not a big issue, but i'm interested that you have the same problem. For me, the rough idle usually occurs after starting the engine up when it is hot. It also seems to happen when the cooling fan comes on. 10 000 km ago i did a service on the car changing drive belt, coolant, spark plug, fuel cleaner, oil filter etc. Besides this occasional mishap the car has been an absolute gem with no other problems. I so far haven't found what is causing this so i too would like so see if anyone knows. Thanks
