On Mon, March 16, 2009 10:31 am, Jonathan Rarity wrote:
> I'm trying to fit a data logging & traction control unit to my busa
> hillclimb car but we're getting some very strange signals in the input
> channels including the tacho signal from the ECU which is just all over
> the place.
>
> One of our lines of thought is the ECU has a resisted earth and this is
> changing the voltages. I've found four earths that go into the ECU and all
> appear to be just normal. Can anyone remember what size of resistor is
> used to fool the ECU the ignition barrel is still there and also where it
> goes in the loom as we suspect this might be the cause of the problem.
Hi Jonathan,
Here's the list Walt posted ages ago and is what I've done to my FuryBusa.
1.Busa ignition controlled by SIDE STAND & Gear position.
2.In the diagram, look at the "IGNITION SWITCH"
orange/yellow and black/white must have 100 ohm resistor.
This is the anti-theft interlock. You have to solve this problem
first. Attach a resistor.
3. Side-stand switch = short this wire
4. TIP OVER SENSOR = attach with 62k Ohm resistor.
5. Gear position switch = attach 6K ohm resistor
6. If clutch switch is not activated, starter will not engage.
I'm in work and can't access my own wiring schematic to give you more
detail of what I did on my car.
Regards,
Bob
