VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing technology developed by Toyota, similar in performance to the BMW’s VANOS. 
VVT-i was introduced in 1996, varies the timing of the intake valves by adjusting the relationship between the camshaft drive (belt, scissor-gear or chain) and intake camshaft. The VVT-i system is designed to control the intake camshaft within a range of 50° (of Crankshaft Angle) to provide valve timing that is optimally suited to the engine operating conditions. This improves torque in all engine speed ranges as well as increasing fuel economy, and reducing exhaust emissions.
By using the engine speed, intake air volume, throttle position and engine coolant temperature, the ECM calculates optimal valve timing for each driving condition and controls the camshaft timing oil control valve. In addition, the ECM uses signals from the camshaft position sensor and the crankshaft position sensor to detect the actual valve timing, thus providing feedback control to achieve the target valve
timing.
Keywords:
- vvti,toyota vvti,vvti toyota,
Posts
how to remove mazda 626 coolant drive belt
October 8, 2009 @ 2:08 am
timing on v8 four 32 cam spec and tbo
November 17, 2009 @ 1:20 pm
hi,ineed to known vvti
May 30, 2010 @ 6:25 pm
What would be the difference in intake of fuel between a Toyota 1496cc Efi engine and another one with the same cc but VVTi engine driving for about 200km non stop?
August 16, 2010 @ 12:24 pm
i would like to thank u.and i would like to get more information about modern engines.
March 14, 2011 @ 4:11 pm
Toyota estima 3.0 v6 vvti timing setting: when I complete set vvti timing and after run the engine in few minutes than the check light will be blind . Can u help me , thanks
May 1, 2011 @ 8:44 pm
I realy apperciate it.
July 22, 2011 @ 6:52 pm
Hi
My Hilux VVT-i 2.7 got a slight problem, and I’m far from a dealer. When I am exelerating it feel like a flat spot. Did change filters and inspect all fuel hoses, but problem still exist
Many Thanx
Micheal
September 27, 2011 @ 2:29 am
kereta toyota dengan charade tu kena di baiki.
November 4, 2011 @ 4:00 pm
Am using pontiac vibe with vvti engine. My vvti sensor had a problem , is leaking oil. I change the vvti sensor with another one, the engine of the car started serious jerking and vibration. I dont know what might have cause the problem
May 6, 2012 @ 3:06 am
the best bus toyota ever made wanna know come dominica and ask who is the baddest and they will show u ha ha ha
February 21, 2013 @ 10:34 am