Toyota Venza 89663-0T160_ST1_E2 SV 4000 Firmware

89663-0T160_ST1_E2 SV 4000 is listed for the Toyota Venza with the 2.7-liter 1AR-FE engine. The 89663-0T160 identifier belongs to Toyota’s engine control calibration part-number family. This associates the entry with software used by the engine control module, which manages engine operation through functions such as fuel delivery, ignition timing and emissions control.

What the variant labels indicate

The filename identifies this entry as ST1_E2 SV 4000, rather than simply 89663-0T160. ST1 commonly denotes a Stage 1 modified calibration, while E2 commonly denotes an emissions-related modification. SV 4000 appears to be an additional variant label, but its precise meaning cannot be established from the catalog name alone.

The filename does not document the exact calibration changes, performance outcome or emissions behavior. The related entry 89663-0T160 identifies the base calibration number without those variant labels. An exact vehicle and controller match cannot be established from the filename alone.