Last night I cleaned the IACV and throttle body on my 2002 Avalon XLS using this method. Took my time with the screws, gaskets all appeared in good order, everything went back together perfectly. All screws, hoses, and connectors were tightened. All wires properly plugged back in.
Today, I notice that if I'm driving down the road at a constant speed(using gas to maintain speed), when I let off the gas the RPMs will dip about 1k and immediately rise back up to the "proper" amount while coasting. If I turned off O/D, the problem is less noticeable.
Of course, my first and worst fear is a tranny problem. The second, more rational thought, is that one of the sensors was damaged or dirtied while doing the IACV cleaning.
Any ideas what the problem might be?
