getting a p1349 code. How much to replace ocv?

Oil control valve, Lexus calls it cam timing oil control valve. To replace it, $400 to $500.

Part is about $100 if you DIY....otherwise, add labor too. http://www.lexussouthatlantaparts.com/products/gb/LEXUS/GS300/VALVE-ASSEMBLY--CAMSHAFT-TIMING-OIL-CONTROL/9914241/1533046011.html?partner=googlebase_adwords&kwd=&origin=pla