If you have an engine from a 2005-2007 Tundra or 2006-2011 Land Cruiser, stop using the chart above. You need the "Electronic Throttle Control System" pinout.

Key Differences:

The 2UZ-FE uses a "waste spark" style setup or coil-on-plug (depending on year) driven by the ECU.

When using a 2UZ-FE in a project car (e.g., into a 1980s Toyota pickup), you do not need every pin. Here is the "Minimum Viable" pinout to make the engine run and idle.

You have a no-start condition. Your scan tool won't link. Here is the diagnostic workflow using the pinout:

The standard 2UZ-FE ECU features three primary connectors, usually color-coded or labeled on the housing. While wire colors vary by chassis (Tundra vs. Land Cruiser), the pin positions generally remain consistent.

If you are reading this, you likely have a 1,000-pound gorilla of an engine sitting on a stand: the legendary Toyota 2UZ-FE. Known for its bulletproof iron block, cross-bolted mains, and ability to run half a million miles, this 4.7L V8 is the heart of the Land Cruiser 100 (LX470), Tundra, Sequoia, and 4th-gen 4Runner V8.

But here is where the romance meets reality: The ECU pinout.

Whether you are diagnosing a P1120 (TPS malfunction), building a custom off-road buggy, or performing a stand-alone swap, you cannot guess the wiring. One wrong pin and you’re replacing a $2,000 ECU or frying a VVTi solenoid.

Let’s break down the 2UZ-FE ECU pinout in excruciatingly useful detail.