https://www.quora.com/What-is-the-common-cause-of-damage-in-a-VVTI-engine-like-Toyota

The earlier Toyota VVTI engines, and I own a car with one, have to be ... that has to do more with heat and with problems in the oil galleries.

https://www.youtube.com/watch?v=7Ef2hYmcZzA

Jan 2, 2014 ... Why Toyota VVT-i engine may start to consume oil and how to do oil leak test. Oil consumption is bad signal.

https://en.wikipedia.org/wiki/VVT-i

VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing technology developed by Toyota. The Toyota VVT-i system replaces the Toyota VVT offered starting in 1991 on ... Dual VVT-i is also found in Toyota's new generation V6 engine, the 3.5-litre 2GR-FE first appearing on the 2005 Avalon.

https://www.scribd.com/document/303942555/Toyota-1-8vvti-Engine-Problems

Toyota 1.8vvti Engine Problems - Download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online. Problems known to 1.8vvti Toyota gasoline ...

http://mywikimotors.com/toyota-1nz/

Toyota 1NZ-FE/FXE engine specs, common problems, reliability, performance ... While making all that, a cylinder head with a VVTi variable valve timing system ...

https://www.engine-specs.net/toyota/1nz-fe.html

The Toyota 1NZ-FE engine has electronic fuel injection system, VVT-i (Variable Valve Timing with intelligence) system on the intake side, ETCS-i (Electronic ...

https://www.samarins.com/reviews/corolla_09.html

May 11, 2019 ... Why should you consider or avoid a used Toyota Corolla? Which engine is more reliable? What are the common problems and fixes?

https://repairpal.com/timing-chainsprockets-may-need-replacement-due-to-wear-and-problems-with-vvti-116

The engine started making a strange sound during cold start. It sounded like a gear slipping. That is when I starred hearing my timing chain roar. I took it to my ...

https://www.autobytel.com/car-ownership/technology/toyota-vvt-i-engine-technology-104198/

VVT-i stands for Variable Valve Timing with intelligence. The technology was developed by Toyota to automatically and continuously varies the timing of the ...

http://www.motorreviewer.com/engine.php?engine_id=76

Toyota 2AZ-FE 2.4L Engine Review ... head with variable valve timing system VVTi on the intake camshaft only. ... Toyota Motor Manufacturing Kentucky, Inc.