Question about Toyota Cars & Trucks
Tumble control valve ... check the vsv vacuum switching valve... 6 small throttle plates inside intake manifold
Posted on May 15, 2017
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Posted on Jan 02, 2017
SOURCE: ocv circuit in toyota
OCV is the oil control valve for the VVTi system, it's located on the side of the cylinder head at the front and has an electrical connector on it, the valve may the problem but it cou;ld also be a clogged oil passage that supplies regulating pressure to the valve or the VVTi gear, the system operation can be checked by connecting an intelligent tester that can activate the system to verify if the valve is the problem, before replacing expensive parts I would make sure what the problem actually may be.
Posted on Feb 28, 2012
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