Toyota and Lexus SW#89663-60J90- MOD_E2_sap_off.bin Firmware
A catalog overview of Toyota and Lexus calibration 89663-60J90 and its modified SAP-off filename label.
SW#89663-60J90- MOD_E2_sap_off.bin is a modified Toyota or Lexus engine-control firmware file labeled for secondary air injection, or SAP, to be switched off. Its calibration identifier belongs to the 89663 software family associated with engine control. The related catalog entry is 89663-60J90.
What the SAP-off label means
Secondary air injection supplies fresh air to the exhaust during certain cold-start conditions. This helps the catalytic converter reach operating temperature and reduces emissions while the engine is warming up. The engine control module manages the system and monitors its operation.
The MOD_E2_sap_off label identifies this file as a modified variant intended to disable a secondary-air function. The filename alone does not establish exactly which control routines or diagnostic checks have been changed. It also does not identify the vehicle model, engine or ECU hardware for this calibration.
Calibration and variant
89663-60J90 is the related calibration identifier. The SAP-off designation applies specifically to SW#89663-60J90- MOD_E2_sap_off.bin, not automatically to every file carrying that identifier. The meaning of the additional E2 label is not established by the catalog name.
Because the secondary air system is an emissions-control system, a modified SAP-off file should not be treated as evidence that a mechanical fault has been repaired or that a vehicle will meet emissions requirements.