Rx 300

[sevio]

I have a 2002 Rx 300, that won't idle sometimes, you have to keep foot on pedel or else it shut down. What can be causeing this. Thanks Sevio

[PK_3]

Could be a million things. You undoubtedly have a yellow check engine light (cel) .Get it read at with an obcII reader Autozone, where ever and they will give you some idea what it is.

PK

[mikey00]

I have a 2002 Rx 300, that won't idle sometimes, you have to keep foot on pedel or else it shut down. What can be causeing this. Thanks Sevio

Almost without a doubt it's your idle air control valve (IACV). You will not get a check engine light when this requires cleaning. You will just get the symptoms you described. It is a very common problem. Here is a procedure:

http://us.lexusownersclub.com/forums/index...showtopic=30723