Toyota Yaris 1.5 Firmware 1NZFE89663-52D30TUN_EVRO2.bin

Yaris1.5 1NZFE89663-52D30TUN_EVRO2.bin is a cataloged engine-control calibration file associated with a Toyota Yaris 1.5 and the 1NZ-FE engine. The 89663 part-number family identifies engine ECU calibration software. The engine ECU uses calibration data to manage functions such as fuel injection and ignition timing during vehicle operation.

What the filename identifies

The full calibration identifier, 89663-52D30, distinguishes this entry from other Toyota engine software records. The TUN_EVRO2 suffix labels the file as a tuned variant associated with Euro 2. It does not establish exactly which calibration tables were changed or how the file affects emissions-system behavior.

The filename identifies a modified variant rather than a stock file. No stock counterpart or specific performance change is established by this entry.