I know the speed sencer wire goes to the dash, but does anyone know if it goes to anything else before it gets to the ECU. That is between the dash and the EU.?

 

 

Chris...

dont think so

 

*he thinks* :)

was gonna say turbo timer if you have one, but that would prob splice into your rev counter wire.

 

the speed sensor I thought was from engine/gearbox that monitors speed and adjusts the weight of the power steering.

 

You mean the speedo wire?

Are they not the same thing? Its the power steering I am having the problem with. So does the speed sensor go direct to the ECU?

Believe it goes to the speedo first, then the ecu. The signal from the speed sensor is electrically speaking a bit rough, it goes through the speedo electronics and gets gets cleaned up into nice square wave for the ecu to read. I had an oscilloscope on these signals a while back and that was my understanding of what was going on, prepared to be told otherwise!

I had prob with my power steering on old zed, it was a common fault I was told

just remade the connection that went into the speed sensor fixed the heavy/light steering problem.

Believe it goes to the speedo first, then the ecu. The signal from the speed sensor is electrically speaking a bit rough, it goes through the speedo electronics and gets gets cleaned up into nice square wave for the ecu to read. I had an oscilloscope on these signals a while back and that was my understanding of what was going on, prepared to be told otherwise!

 

 

Ok but the problem is I have an after market speedo that is working fine so it is getting a signal but I dont have a signel at the ECU. I did not fit the speedo so I dont know if the wire from the speedo to the ECU is even connected. If as you say the speedo cleans up the signal will the one I am useing do the same job? If it just means running a new wire from the speedo to the ECU the fix should be easy.

 

Would the signal from the speed sensor be affecting anything else?

 

Chris...

Chris, did you sort this?

I would be interested in this as i don't have a signal at the ecu but the speedo works fine.

Hi,

Worth cleaning the connector down on the steering rack, to the solenoid.I've recently cleaned mine and the heavy/light steering problem has gone! (touch wood)

I didn't think it was the speed sensor on mine as the speedo was working fine when the steering played up.

Cheerz,

Jez.