This feature is for automatic transmissions to retard the engine timing during gear shift. This will make the shift smoother and protect the transmission. The launch control circuit will be used and this system will disable launch control.
Set the tuning POT on.
Set the POT on Retard.
Set the RPM limit on zero. Set the launch control timing on 5 to 15 degrees depending on the feel of the shift in the transmission. Launch deactivation must be on Clutch. Fuel enrichment is not used here.
Now connect the relevant wires from the TCU to the ECU. When the TCU makes a shift it will put a negative driver on. It will connect to the POT input of the ECU. The POT real-time bar will be high and the moment of shift it will go low, activating the retard feature.
Leave A Comment?
You must be logged in to post a comment.