Manual APPLICATION 2UZ VVT-i WIRING

What you can Expect:

🔧 2UZ-FE VVT-i Manual Transmission

Professional Wiring Harness & ECU Services

We focus on transforming your factory 2UZ-FE VVT-i harness and ECU into a standalone, plug-and-play system. Our expertise ensures clean, reliable wiring and fully configured ECU programming—so you spend less time troubleshooting and more time driving.

⚙️ Wiring Harness Services

1. Complete Harness Cleaning & Refurbishment

Full disassembly, degreasing, and debris removal
Inspection and replacement of aged connectors (coil, injector, cam sensor, OCV)
Quoted connector replacements after harness inspection

2. Harness Modification for Manual Swaps

Removal of all automatic-only wiring (TCU, PRNDL, solenoids)
Repurposing and relabeling circuits for manual inputs
Integration of a dedicated fuse box—no reliance on chassis wiring

3. Simplified Vehicle Integration

Installation of a multi-pin client plug (like a car stereo harness)
Starter, ignition, and fuel pump power wires pre-wired
Dashboard signals: tachometer, temperature, oil pressure, charge light, and CEL
Optional A/C compressor clutch trigger

4. OBD2 & Accelerator Pedal Support

OBD2 port added for live diagnostics and reflashing
Accelerator pedal extension harness (or throttle-body sensor wiring) for seamless connection

5. Emissions & 4×4 Options

Air Injection: retain wiring or delete circuits & suppress codes ($150)
4×4 Actuator Integration: adds wiring for 4WD actuator logic ($80)

🧠 ECU Programming Services

Immobilizer Removal Bypasses factory security—always included

DTC Removal Clears non-essential codes to prevent unwanted CELs $140

Performance Tune Separate map for sharper throttle response and optimized fuel/ignition $100 Air Injection Delete (ECU) Suppresses air injection codes delete $150

Our performance tune is tailored for swap applications—improving throttle response, smoothing idle, and enhancing drivability without altering peak power.

🧪 Testing & Documentation

Before we ship, every harness and ECU undergoes:

Live bench test on our engine stand
Full DTC scan to confirm code-free operation
Recorded walkthrough and test-run video
A shared folder with:
- Test-run video
- Harness photos
- ECU calibration information
- Installation notes
- Shipping & tracking info

You receive all documentation before invoicing—no surprises.

💰 Pricing Breakdown

Standalone Harness Conversion (Manual) $750

DTC Removal +$140

Performance Tune +$100

Air Injection Delete +$150

4×4 Actuator Integration +$80

Connector Replacements or added (if needed) Average $6/Connector installed

Connector replacement costs vary by condition and quantity; we’ll quote once we inspect your harness.

⏳ Turnaround & Requirements

Typical build time: 1–2 weeks (depending on workload)
Client form required: vehicle details, wiring preferences, ECU specs
Return shipping covered by customer; estimate added to final invoice

🚀 Ready to Upgrade Your Wiring & ECU?

Contact us via email or our contact page to discuss your project and secure your build slot. Let us handle the technical challenges so you can enjoy a seamless 2UZ-FE VVT-i swap.

An example of what you will receive in video:

2uz vvt-i wired and running for an engine swap into a land cruiser with a custom immobilizer. - YouTube

2UZ VVT-i OEM ECU Reliability

All the 2UZ ecu's have no trouble with hardware. These ECU are programmable and are not subject to leaking capacitors or actual natural physical damage. If you feel rough shifting this is not a failure from the hardware. You can simply get your ECU flashed with either an updated or a fresh file

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Additional Information

The 2UZ-FE VVT-i Engine

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