Toyota LC150 1GR-FE 89663-60X70 E2 SAP OFF FULL Firmware
Explore the Toyota LC150 1GR-FE 89663-60X70 engine calibration and its SAP OFF FULL, CVN OK and CRC OK variant labels.
The Toyota LC150_1GRFE_89663-60X70_E2_SAP OFF FULL_CVN OK_CRC OK_GEN2 catalog entry describes a modified engine-control firmware file for a Toyota Land Cruiser Prado 150 with the 1GR-FE gasoline engine. Its named modification concerns the secondary air injection system, which helps reduce exhaust emissions during cold starts.
Engine control and secondary air injection
The 89663-60X70 identifier belongs to Toyota’s engine calibration part-number family. The engine control module manages functions such as fuel injection, ignition timing and emissions controls using sensor inputs and operating conditions. The identifier alone does not establish the precise market or production date for this application.
Secondary air injection supplies fresh air to the exhaust after a cold start. This helps exhaust catalysts reach effective operating temperature and reduces emissions while the engine warms up. The engine controller supervises the system and can record faults when its operation does not match expectations.
What the modified filename says
SAP OFF FULL identifies this file as a modification intended to disable secondary air pump or secondary air injection functionality in the calibration. In practice, that means the software is described as suppressing the named emissions-system function rather than simply repairing a mechanical fault. The filename does not show which individual controls or diagnostic monitors were changed.
CVN OK and CRC OK are catalog labels concerning calibration verification and checksum integrity. They describe the modified file as having those checks addressed, but the labels alone do not independently verify its contents. E2 and GEN2 are retained as variant identifiers in the filename, without a confirmed explanation of their specific meaning.
The related catalog identifier 89663-60X70 identifies the calibration family without the modified file’s SAP OFF, CVN or CRC claims. Disabling an emissions control can affect vehicle compliance and inspection outcomes, depending on local requirements.