Rockauto.com has the part for $55
Possibly the IAC ( Idle Air Control) vavle on the throttle body, or egr vavle stuck open..........would check or replace IAC first, usually not expensive.
U need to clean the throttle body and also clean the idle air control vavle
It is inside the trans, on the vavle bodyIt is inside the trans, on the vavle body
Unfortunately, the 2002 es300 was the first year that Lexus did not use a IACV in the ES300.
There are two "valves". The heater control valve (YC3Z-18495-BA) located by outside of the body near where the running board would mount. In terms of front or back, it is closer to the trans. It is connected to the top of one canister that is connected by a long hose that goes to another canister located on the other side of the truck's frame. There is also a valve (YL7Z-19D963-BA) located in the climate unit behind and under the passenger side of the dashboard.
It's where the Aortic Vavle is diseased by narrowing of the Vavle or thickening of the tissue.
left artiumRight artirumleft ventricleRight ventricle
It uses an orifice in the top rear of the vavle cover not a PCV vavle.
It is to the right of the vavle cover when standing in front of the engine bay it is the cylindrical canister looking object with a plug going in to the top two 10mm bolts hold it in place not the usual looking EGR valve for sure
under the intake manifold on the 2.0 twin cam,you can see it from the driver side under the intake
if the part is bad for sure i would go to the part store and buy a new one. then look at the wire connector or plug end and look on the engine to find the same thing. if the part may not be bad so try to find a picture of the plug and on some engine the control vavle is on top around the inlet on the oldder models, but with newer engine don't have idle control vavle if you can find a haynes book at the part store it will be a big help now and later on
sintered iron or bronze