The pinouts between these generations are not interchangeable. Using a 2002 ECU wiring diagram on a 2006 engine will result in immediate electrical conflict.
Coolant Temperature Sensor (important for cold start enrichment). Wiring for Swaps: The "Stand-Alone" Checklist 2uzfe ecu pinout
The Toyota 2UZ-FE V8 engine is a legendary powerplant, known for its million-mile durability in the Land Cruiser, Sequoia, and Tundra. However, when it comes to engine swaps or troubleshooting electrical gremlins, the ECU (Engine Control Unit) wiring is often the biggest hurdle. Because this engine spanned over a decade, the pinouts changed significantly with the introduction of VVT-i and Drive-by-Wire systems. and Tundra. However
: Camshaft Position Sensor signals for identifying cylinder position. 2uzfe ecu pinout