1kz Ecu Pinout Updated Jun 2026

Use a paperclip to jumper pins and E1 inside the diagnostic box.

This is the most common failure point.

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Many half-cut engines (especially from Toyota Surf/4Runners) come with an immobilizer system. If your engine cranks but does not fire, check if the injector light flashes rapidly. Use a paperclip to jumper pins and E1

1kz ecu pinout