Remember: The ECU is the brain. The pinout database is the MRI machine. You cannot fix what you cannot see. Get the data, understand the map, and master the machine.
Do not save files as "Supra_pinout.pdf". Use a strict naming convention: [Manufacturer]_[Model]_[Chassis]_[Engine]_[ECU_Number]_[Year].pdf denso ecu pinout database
The story of the is one of transition from a proprietary "black box" held by automotive manufacturers to an open-source movement fueled by independent mechanics and tuners. The Era of the Proprietary Black Box Remember: The ECU is the brain