Hi everyone, now I have my 1995 P38 going with a rebuilt motor etc. the speedo has not been working. The scan tool says speed sensor input out of range or something similar. Is there any way of telling which sensor is out of range, or should I just replace them all. I have another vehicle I could pull them from. Also another problem that may be speed related. While I was working on the my P38 I thought I would replace all the air bags, and I rebuilt the compressor and the valve block. And I made up and fitted a manual inflation set of valves. And a isolation switch to cut the earth to the relay under the passenger side seat. So when I got it going the air suspension seemed to work sitting in the yard, up and down. But when I took it for a drive, when I got up a bit of speed it dropped to the bump stops. So now I am driving the vehicle with the EAS turned off as when I turn it on it now drops the drivers side down to the bump stops and pumps the passenger side up to max height. Also I have an odometer error coming up on the message screen. Could all these be related? Also the scan tool has lost communication with the vehicle.