s2kseven

I'm doing some project using the S2000 cluster gauge.
Question: what drives the speedometer to work in the cluster gauge --- is it the VSS (vehicle speed sensor) ?

thank you

chris_barry

Yes,

Speed signal wire goes from the VSS and T's to the ECU and cluster. The cluster then outputs a slower ( half speed) signal which is used for things like the soft top, radio, wipers etc that need a speed input. I think his avoids a problem with any of these secondary devices interfering with the primary VSS signal.

s2kseven

if I'm not using the stock honda ecu, instead I'm using AEM EMS where do I connect the VSS wires to the aem ecu?
The VSS wires from the left --1: yellow/blue 2: Blue/White 3: Brown/Yellow

I know where to connect to the cluster gauge - I know the pin.
Can I directly connect the VSS signal wire to the cluster without going to the ECU?


thanks again

chris_barry

The VSS should be wired into the AEM in the factory engine harness. The ECU provides the supply voltage to the sensor ( 5 or 8 volts from memory)

Pins to the AEM are

signal A9 blue white
VCC2 C28 yellow/blue
gnd B22 brown/yellow

The ECU provides power to the sensor so you can't connect only the signal wire to the cluster without the ECU

s2kseven