What means Dual VVT-i engine in Toyota cars and trucks?Engine 1ZR-FE 2ZR-FE 2ZR-FAE Valvematic system.Year 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Dual 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. The V35A-FTS is a 3.5-liter twin-turbocharged V6 gasoline engine debuted in 2017 with the fifth-generation Lexus LS 500. This new member of Toyota's Dynamic Force engine family is the first turbocharged V-engine in Toyota's history. In the near future, the manufacturer will stop using all V8 engines (1UR-FE, 3UR-FE) in Toyota and Lexus vehicles 16. blueportcat. • 2 yr. ago. Toyota VVT-i (Variable Valve Timing) only changes timing unlike Honda VTEC which can change both timing and the actual valve lift profile. The latter allows the engine to have essentially dual personality and more aggresive power gain especially during the switch over. Just added a movie on utube with the engine sound that it's normal since I saw much more yaris 1.33 and 1.3 L with the same sound. For me what is not clear why when I am turn on the lights rpm at idle grow up and the vibration disappear. Does any one know if the idle speed can be adjust by dealer ? thank you The VVT-i system works by using an oil-pressure actuator to adjust the location of a camshaft. This results in better low-end and high-end performance and overall engine efficiency. Early 1GR-FE engines only used VVT-i on the intake camshafts. That changed in 2009, when Toyota added Dual-VVT-i to the 1GR-FE in the 4Runner and FJ Cruiser. Pentastar 3.6L Common Problems. Some of the most common issues with the Dodge, Jeep, Ram, Chrysler 3.6 Pentastar engine include: Cylinder head (2011-2013) Rocker arms. Cooling system. Oil pump. Below we break down each of these problems in-depth. It's a good time to add a few quick notes. This is the cycle most people know: intake, compression, power and exhaust. It uses fuel, air and spark plugs to fire the piston, turn the crankshaft and make the engine run. The cycle is so Dual VVT-i: Turbocharging: no: Recommended engine oil: 5W-20: Engine oil capacity, liter: 3.4: Fuel type: petrol: Euro standards: EURO 3/4/5: Weight, kg: 99: Most Common 2NR-VE engine Problems. While the Toyota 2NR-VE engine generally exhibits commendable reliability, a few concerns have emerged among users: BMW M43B19 Engine Problems, Specs And Reliability; Nissan 5.6 V8 VK56DE Engine Reliability, Specs And Problems VVT-i: Compression Ratio: 11.1:1: 3SGE Red Top Beams horsepower: 147 kW 197 hp at 7,000 rpm: Its peculiar feature is a Dual VVTi variable timing technology. Having an output of 200 hp, the motor has identical valves to the z2Alkq.