Manual APPLICATION 2UZ VVT-i WIRING

All 2UZ-FE engines produced after 2007 are equipped with Variable Valve Timing, commonly known as VVTi. This intelligent system manages nearly all vital engine parameters: throttle position, coolant temperature, air volume, and more. Utilizing this data, it adjusts the intake camshaft timing to enhance engine performance and efficiency across low, mid, and high rpm ranges. Another notable feature is the plastic intake manifold with an adjustable intake port length, regulated by Toyota's Acoustic Control Induction System (ACIS). This system operates with two intake port lengths: a longer one for low engine speeds and a shorter one for higher speeds.

Within the 2UZ-FE VVTi engine, newly designed lightweight pistons and oil jets are installed in the cylinder block for cooling. The compression ratio has been increased to 10.0:1 to optimize fuel combustion. By 2010, the 2UZ-FE VVTi had fully replaced the previous engine model. However, starting in 2008, the 4.7-liter engine began a gradual phase-out, being superseded by the newer 5.7-liter 3UR-FE and 4.6-liter 1UR-FE engines.

Engine Specifications:

- Manufacturer: Toyota Motor Manufacturing Alabama

- Production Years: 1998-2011

- Cylinder Block Material: Cast Iron

- Cylinder Head Material: Aluminum

- Fuel Type: Gasoline

- Fuel System: Fuel Injection

- Configuration: V

- Number of Cylinders: 8

- Valves per Cylinder: 4

- Valvetrain Layout: DOHC

- Bore: 94.0 mm (3.7 in)

- Stroke: 84.0 mm (3.3 in)

- Displacement: 4,663 cc (284.6 cu in)

- Engine Type: Four-stroke, Naturally Aspirated

- Compression Ratio: 9.6:1, 10.0:1 for VVT-i versions

- Power Output:

  - 230-232 hp (170-173 kW) at 4,800 rpm for non-VVT-i, JDM engines

  - 271-282 hp (202-210 kW) at 4,800 rpm for VVT-i versions

- Torque:

  - 300-311 lb-ft (410-422 Nm) at 3,600 rpm for non-VVT-i

  - 315-325 lb-ft (427-440 Nm) at 3,400 rpm for VVT-i versions

- Engine Weight: 562 lbs (255.5 kg)

- Firing Order: 1-8-4-3-6-5-7-2

- Engine Oil Weight: 5W-30

- Engine Oil Capacity: 6.4 liters (including 0.4 liters for the oil filter)

- Oil Change Interval: 7,500 miles (12,000 km) or every 6 months

- Applications: Toyota Tundra, Toyota Sequoia, Toyota Land Cruiser, Toyota 4Runner, Lexus LX 470, Lexus GX 470