Guys,
Fiddling with my Dad's FJ20ET datto ute. It has a VL 4N71B Jatco which I'm setting up as standalone (no TCU).
At the moment I have a switch on the accel pedal that activates the kickdown, but it only does it at 100% throttle. It seems a big clunky. Great if you are drag racing, not so good if you are losing speed up a long slow hill. You can boot it, make it shift down and then feather the throttle. I'm looking at a better solution.
I have a spare ECU output and would like some advice regarding kick down conditions.
I have inputs for Road speed, RPM, TPS, engine load (all the typical EFI shit). These inputs can be used to build a rule controlling the output.
I'm thinking :
IF TPS > 70% - kickdown
or
IF RPM <3500 and MAP > 5psi? - kickdown?
Am I on the right track?