Toyota and Lexus Firmware 89663-60M00-A-e2_sap_off.bin.bin

89663-60M00-A-e2_sap_off.bin.bin is cataloged under calibration family 89663-60M00. Its SAP-off label points to a modified engine-control calibration associated with disabling secondary air injection. This association is tentative because the catalog entry does not identify the vehicle or controller.

What the SAP-off label means

Secondary air injection introduces fresh air into the exhaust during certain cold-start conditions. It helps reduce emissions while the exhaust system warms up. An SAP-off calibration generally changes how the engine controller handles that system, but the filename alone does not establish the exact software changes.

The related entry 89663-60M00 identifies the base calibration family. The A-e2_sap_off suffix belongs to the named file and should not be assumed to describe every file in that family. The catalog does not establish an exact vehicle application or confirm which version is stock.