3zz Fe Ecu Pinout <2026 Update>

The 3ZZ-FE is a 1.6L inline-4 engine found in Toyota vehicles such as the , Corolla Spacio , Wish , and Premio/Allion (early 2000s). It uses a Denso ECU (typically part numbers beginning with 89661 or 89666).

Here is the technical content regarding the (Engine Control Unit connector layout). 3zz fe ecu pinout

Pin assignments vary by chassis, transmission (MT/AT), and market (JDM/EDM). Always verify with a wiring diagram for your exact vehicle’s VIN and ECU ID. ECU Connector Overview (3ZZ-FE) The ECU has 4 connectors (labeled A, B, C, D). The 3ZZ-FE is a 1