Meant for Toyota cars before the obd1 data stream. Quite limited in comparison with the OBD1 mode and more involving but still relevant on cars with nothing at all. On older cars VF (fuel trim) can be read directly off the diagnosis box, this tells us how much the engine is out of tune, with the added installation of the 'one wire setup' one can see the injector usage in conjunction with the fuel trim at any given RPM making for a deeper understanding of the situation, useful for engine tuning on stock ECUs or health monitoring for a daily driver.
ENGINE ERROR CODES
Engine error codes output can be triggered
with the tool, depending on the car`s wiring diagram it may lack the W
wire in the diagnosis box to get the codes into the toyocom, in this
sitatuation one must rely on eye reading and compare with the chart
built into the error codes glossary built into the android app. On cars
with complete wiring the error codes are fed into the tool and the
Additionally it allows to read simultaneously
custom inputs from different spaces in the diagnosis box, (VF2,TS,TT,AB)
This allows to replace the SPD,RPM,INJ reading with custom sourced
signals which are read more often (faster on screen). It also allows to
just route additional sensors into the tool.