someone with a 5000 turbo bentley reply please...

[Brian Devlin]

Are we talking about the speedometer sensor circuit? I haven't looked
at the actual parts, but this is what I gather from the Bentley. For
86-88 turbos this goes to position 5 of the 14 point connector on the
intrument printed circuit. In 86 it was a yellow wire, on 87+88 there
should be a pair of Y/BK wires at this position. From there you'll
have to trace it through the printed circuit to the speedo.

The printed circuit has two 14 point connectors in the turbos. "14"
has a yellow band and is on the driver's side, and "14a" has a white
band on the passenger side. Looking at the connectors from the side
with the wires (front of the car, I think) they are both numbered
from right to left (so that would be drivers side to passenger side).

Other useful connections (I think...this wiring diagram is a pain).
You'll have to trace these around the printed circuit to see where
they go into the speedo.
14/7: ground
14/12: +12 volts
14/11: goes to the voltage stabilizer and the speedo (and other places)

A fifth connection on the speedo appear to run to the board computer
without leaving the printed circuit.

Confused yet? I am.
-Brian

>Okay...bear with me here.
>
>Tomorrow I'm going to go and test a 5000 turbo speedometer/odometer
>to see if I
>can get the odometer function to work of my cars sensor. A crazy project..but
>needed.
>
>I've checked my copy of bentley and have figured out what wires into the
>instrument cluster are for positive, negative and speed sensor input.
>
>I was simply going to bridge these to the 5000 electronic speedometer and see
>if it works. (I love a good wrecker who will let you test parts!)
>
>I just realized...I have NO idea where to connect these on the 5000
>speedometer!!
>
>Can someone please look in their bentley...and find the speed sensor input,
>speedometer positive and negative...and describe to me where they are on the
>connector/speedometer?
>
>For instance:  On the 1989 90quattro I'm looking at the blue connector at teh
>back of the instrument cluster. Pin 16 is speedo +, pin 21 is speedo - and pin
>20 is speed sensor input.
>
>TIA
>
>-Dave
>
>
>
>------------------------------------------------
>89 90q...undergoing massive preperations for drivex style
>rallies...all started
>due to an influx of funds not planned in the student budget.
>
>Tomorrow:
>
>1) Quad headlight conversion (affordable...and better then 13yr old DOT's)
>2) External ODO for Navigator (Rally computer bit the dust two nights ago)
>3) Repair aux. reverse light...
>
>Next week:
>1) Tranny & Diff lube
>2) Light Bar (for PIAAs and/or Hellas that were all ordered in October...)
>3) The list goes on...