I would definetly try oil control valve, or swap it with the other banks and see if the codes shift. The VVTI cam shaft may be sticking and causing bad timing on one bank. My neighbor had the VVti cam gear go bad causing the poor running at idle but fine at speed....The cam changes timing depending on Rpm and load...this is controlled by the oil control valve......one on each bank.

 

Thanks for the help thomas.... when looking online i have a hard time finding the part number... ebay listings dont show it.... but they do have different listings for the front and back OCV.... are they actually the same part and interchangable???

Thanks again for all the help.

Cheers

 

item 11101 on these drawings, if you sign on to them and use Club Lexus you will get a further discount...

http://lexus.sewellparts.com/oem-cat...X300-1999.html

and yes they are different front to back sorry

 

Thomas,

Just to be sure before i order these parts, i dont want to make the mistake of ordering the wrong ones since shipping to canada is expensive..

Im looking for the

22204-07010- Mass Air Flow Sensor.
15330-0A010 Pass side Oil Control Valve ( which is front? 2/4/6 cylinders?? )
89465-49075 Rear Oxygen Sensor?


Does that sound about right... im trying to find one seller that can get me all three of these with a USPS shipping to avoid brokerage fees UPS uses.... sewell has good prices but their site is hard for me to find that parts, and im worried about shipping..
should i maybe just call them directly?


thanks again for the help .