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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 the 5-valve per cylinder 4A-GE engine. The VVT system is a 2-stage hydraulically controlled cam phasing system.

parts.olathetoyota.com/toyota-vvt-i

Similar to VVT-i, Dual VVT-i adds in control of the exhaust camshaft to the VVT-i's control of intake valves. This is found in the latest-generation V6 engines, starting with the 2GRFE in the 2005 Avalon in the U.S. It is now the most common VVT system in use by Toyota, appearing in most of the LR, UR, GR, AR and ZR engine families.

www.autocodes.com/p1349_toyota.html

P1349 Toyota Description Variable Valve Timing (VVT) system controls the intake valve timing to proper timing in response to driving condition. The Engine Control Module ( ECM ) controls Oil Control Valve (OCV) to make the intake valve timing properly, and, oil pressure controlled with OCV is supplied to the VVT controller, and then, VVT ...

www.billzilla.org/vvtvtec.htm

A Comparison of the Toyota VVT system Vs the Honda V-TEC. On this page I talk about the two different methods used to increase the power output, and what's good and bad about them. What the two systems are, and why they are used

parts.olathetoyota.com/p1349-code

Variable Valve Timing System Malfunction - Bank 1. OBD-II code P1349 indicates a problem with the variable valve timing system in your Toyota. Your Toyota's variable valve timing, or VVT, system is responsible for controlling and adjusting the intake valve timing according to driving conditions.

www.testroete.com/car/Toyota/mr2 spyder/Repair Information/New Car...

6. VVT-i (Variable Valve Timing-intelligent) System General This system controls the intake camshaft valve timing so as to obtain balance between the engine output, fuel consumption and emission control performance. The actual intake side valve timing is feed back by means of the camshaft position sensor for constant control to the target valve ...

www.youtube.com/watch?v=WnbJ6-nc6Oo

Toyota p1349 oil control valve issues COOTER383. ... Variable Valve Timing Code p0011 p0010 p0012 p0013 p0014 ... CURSO TÉCNICO de VACNUL Sistema de Avance Angular VVTi toyota - Duration: ...

jalopnik.com/how-variable-valve-timing-works-500056093

Let's see how Toyota’s VVT-i system works. The VVT system shown in the video above is a variation of Toyota’s VVT-i, though Honda has a similar system called VTC.

kereta.info/how-toyota-vvti-engine-works-variable-valve-timing...

VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing technology developed by Toyota, similar to the i-VTEC technology by Honda. The Toyota VVT-i system replaces the Toyota VVT offered starting in 1991 on the 4A-GE 20-Valve engine.