Toyota and Lexus 89663-60Q10-TUN_SAPoff.bin Firmware
A catalog overview of Toyota and Lexus firmware 89663-60Q10-TUN_SAPoff.bin and its SAP-off variant label.
89663-60Q10-TUN_SAPoff.bin is cataloged as a modified variant of calibration 89663-60Q10. Its SAPoff label indicates that the variant is intended to disable the secondary air injection system, an emissions-control system that supplies fresh air to the exhaust during certain cold starts.
The secondary air injection system helps the catalytic converter reach effective operating temperature and reduces emissions while the engine warms up. A file labeled SAP off may change how the engine control software operates or monitors that system, but the filename alone does not establish the exact changes made.
Calibration and variant
The 89663 part-number family is associated with Toyota and Lexus engine control software. The related catalog entry 89663-60Q10 identifies the base calibration, while TUN_SAPoff distinguishes the named modified file. The exact vehicle application and the contents of the modification are not established by these catalog identifiers alone.