Rx 330 Stalling Problems

[sdrew25]

I have a 2004 RX330 with 49,000 miles. One year ago my RX started to stall while in motion. Lexus service held it for 3 weeks, had a hard time diagnosing the problem and eventually told me it was fixed. A year went by (8,000 miles later), and the problem has reocurred. Lexus service has had my RX now for two weeks and I assume have not yet been able to find the problem again. Anyone have any insight for me. Thanks

[lenore]

Sounds like the IACV is dirty or failing...But I am sure Lexus would troubleshoot that, unless they came up with some codes...