Toyota Firmware SW#89663-60E72- MOD_E2_Sap_off.bin
A catalog reference for Toyota calibration 89663-60E72 and its modified SAP-off filename label.
SW#89663-60E72- MOD_E2_Sap_off.bin is a modified Toyota firmware file whose name indicates a secondary air injection, or SAP, off variant. The underlying calibration identifier is 89663-60E72, listed separately in the catalog.
What the SAP-off label means
Secondary air injection is an emissions-control function. During a cold start, it supplies fresh air to the exhaust stream to help the catalytic converter reach its effective operating temperature sooner. A file labeled Sap_off indicates a modification intended to disable that function, rather than ordinary stock operation.
The 89663 calibration family is associated with Toyota engine control software, so this entry is tentatively associated with the engine control module. The filename does not establish which vehicle or engine it fits, or exactly how the modification changes the software.
MOD_E2 identifies this as a named modified variant. The catalog also lists 89663-60E72 without those variant labels, but does not identify that entry as a stock file or document the differences between the files.