Toyota 89663-60F91 Firmware for Prado 150 2TR-FE

Toyota 89663-60F91 is an engine-control calibration associated in the catalog with the Land Cruiser Prado 150 and its 2.7-liter 2TR-FE gasoline engine. It belongs to the engine ECU software family that controls combustion and related engine operation, affecting how the engine responds to the driver and operating conditions.

The catalog identifies the main flash as 2TR-76F0085 and lists a 992 KB file named 89663-60F91-stock.bin. Another entry names a 2010 Toyota Prado 150 with the 2TR 2.7-liter engine. These identifiers distinguish this calibration from similarly numbered Toyota firmware, although a filename alone does not establish compatibility with every Prado 150.

What the engine ECU controls

The engine ECU uses calibration data to manage functions such as fuel injection and ignition timing in response to sensor readings and driver demand. This coordination helps the engine run across different loads, temperatures and speeds. The ECU family’s general role does not, by itself, show what Toyota changed in the 89663-60F91 revision.

Stock and modified catalog labels

The 89663-60F91-stock.bin label identifies a stock version of the main flash. The entry LC150 2.7 2TRFE 89663-60F91_ST1_E2 SV 4000 p. identifies a modified variant with ST1, E2 and SV 4000 labels. ST1 commonly denotes a Stage 1 tune, while E2 commonly refers to an emissions-related modification. The filename does not define the precise calibration changes or the meaning of SV 4000.

Two additional files, SW#89663-60F91- MOD_E2.bin and 89663-60F91-_MOD_E2.bin, are labeled as modified E2 variants. Their names do not establish that they include the ST1 or SV 4000 features listed in the separate LC150 entry.