Toyota Tacoma 4.0 1GR-FE 2WD MT Firmware 89663-YWG24

89663-YWG24 is a Toyota engine-control calibration identifier associated in this catalog with a Tacoma 4.0-liter 1GR-FE, two-wheel-drive vehicle with a manual transmission. The 89663 part-number family is associated with engine control module calibration software.

Engine-control role

The engine control module manages engine operation using sensor inputs to calculate functions such as fuel injection and ignition timing. Its calibration is matched to the engine and vehicle configuration. In this entry, the 1GR-FE engine and manual-transmission label are the distinguishing application details.

The identifier does not establish a particular performance modification, emissions change, or revised driving behavior. The catalog name contains no stock or modified variant label, and it does not specify a model year or a service bulletin for this calibration.