Toyota and Lexus t001-noegr-nofap.mod Firmware
A catalog reference for t001-noegr-nofap.mod and the NOEGR and NOFAP labels in its filename.
t001-noegr-nofap.mod is listed as a modified firmware file with labels referring to exhaust gas recirculation (EGR) and a particulate filter (FAP). The filename suggests changes intended to disable or bypass those emissions functions, but it does not establish the exact software changes or the control module involved.
What the variant labels mean
NOEGR commonly denotes a modification to EGR, a system that routes a controlled amount of exhaust gas back into the engine to reduce nitrogen oxide emissions. NOFAP commonly denotes a modification related to the exhaust particulate filter, which traps soot and periodically burns it off during regeneration.
On this file, the labels describe the apparent modified variant rather than a documented stock calibration. They do not establish whether the changes affect system operation, fault reporting, regeneration or a combination of these. The identifier alone also does not establish a specific Toyota or Lexus model or engine.