hnguyen

Same problem with my 02 es300. I did what the stevej said but that did not help me. Turns out that my throatle plate was very dirty. My friend, the learn it yourself mechanic, and I cleaned it with a can of carburator cleaner and now my idle is holding at 300-500 rpm. This job requires that two persons; one to step on the brake and gas peddle and the other to spray the carb cleaner while the car is reved up. We used the whole can. He removed one of the hose connector and spray the can in there. We tried to open the air filter but the engine will not run with the air filter open. I am hoping that it will relearn and settle at the right rpm. I don't know why dirty throatle plates affects the relearning of the computer. Hope that helps.