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  #21  
Old July 4th, 2013, 12:14 PM
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Don Bunnell
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Quote:
Originally Posted by gonzanc View Post
I left the connection in tact and spliced into the signal wire coming out of the VSS and ran that to the VDO
Do you recall which wire you spliced into? There are 2 - yellow and green? Red90's diagram shows Yellow as the signal but it also shows a white wire which my 1995 VSS does not have.

Also any certain calibration tricks for the speed once hooked up? I ran a wire from the back of the speedo to the VSS area but didn't want to splice until I knew which one.

Thanks!
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  #22  
Old July 4th, 2013, 12:26 PM
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John B.
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I'm not sure, but you should be able to trial. The speedo can't be hurt as the worst it will see is continuous 12 V.

To calibrate, just do the 1 mile calibration against a GPS odometer to start. If you want more accurate, check the odometer against a GPS over a long distance and manual change the calibration number. If you are careful with the 1 mile setting (start from a stop and stop at exactly 1 mile) it will be very accurate. On mine, I find this sets the odometer exact and the speedo runs 2 mph high. I suspect on purpose for speeding ticket liability.... You can adjust the needle to match the odometer if you are anal with a separate adjustment.
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  #23  
Old July 4th, 2013, 12:44 PM
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Don Bunnell
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Thanks Red - if I get impatient I will do like you said and trial and error it.

Thanks for the calibration tip - sounds straight forward enough.
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  #24  
Old July 29th, 2013, 07:39 PM
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So i finally managed to eliminate all the speedo cables and the VSS in my truck and replace it with a YBE10040 and a VDO speedo. The trick was to run a resistor inline with the ECU feed ... this limits the current and prevents the YBE10040 burning out. I used the resistor from the old VSS which i extracted during open VSS surgery. Tapping into the other side I ran a wire up to the speedo. Grabbed a 12v feed from the ones feeding into the other dials and attached a ground.

A few minutes calibrating against the GPS and voila!
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  #25  
Old July 30th, 2013, 10:07 AM
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Don Bunnell
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Quote:
Originally Posted by leastonce View Post
So i finally managed to eliminate all the speedo cables and the VSS in my truck and replace it with a YBE10040 and a VDO speedo. The trick was to run a resistor inline with the ECU feed ... this limits the current and prevents the YBE10040 burning out. I used the resistor from the old VSS which i extracted during open VSS surgery. Tapping into the other side I ran a wire up to the speedo. Grabbed a 12v feed from the ones feeding into the other dials and attached a ground.

A few minutes calibrating against the GPS and voila!
That is great news - I have gotten my VDO to mostly work with the stock VSS but the VDO needle is jumpy and if I am stopped it sometimes still shows I am going 10 MPH (give or take some MPH)

So correct me if I am wrong to do your process:
- replace cable and VSS that goes to the t-case with the YBE10040
- run ECU wire from YBE10040 (is it yellow?) to resister from the original VSS to the original yellow wire from the vehicle that talks to the ECU.
- splice a wire to that yellow wire to go to the VDO
- the other YBE10040 wire goes to the green (power) wire from the original VSS.
- at the dash - power and ground to the VDO gauge. Wire that was spliced to the YBE10040 goes to position 8 (IIRC) in back of the VDO.
- calibrate

This is one thing I would love to sort out 100% before I sell my NAS. Bouncy guages drive me bonkers!
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  #26  
Old August 26th, 2013, 09:46 AM
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Quote:
Originally Posted by leastonce View Post
So i finally managed to eliminate all the speedo cables and the VSS in my truck and replace it with a YBE10040 and a VDO speedo. The trick was to run a resistor inline with the ECU feed ... this limits the current and prevents the YBE10040 burning out. I used the resistor from the old VSS which i extracted during open VSS surgery. Tapping into the other side I ran a wire up to the speedo. Grabbed a 12v feed from the ones feeding into the other dials and attached a ground.

A few minutes calibrating against the GPS and voila!
I just swapped out the VSS for a YBE100540 on my '94. It cured the bouncy speedo problem nicely, plus no more stupid speedo cables! I haven't connect the ECU to it yet because of what you said about burning out the YBE. Do you know for sure that it will burn out, did it happen to you?

I don't want to break open my VSS because it still works. Do you know what value the resistor is?

Thanks
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  #27  
Old December 23rd, 2013, 01:19 PM
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Okay, so this is the idea as I understand it. Any idea of the resistor size in the stock speed sensor?
Attached Files
File Type: pdf VDO-EFI-Wiring_rotated.pdf (10.2 KB, 109 views)
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  #28  
Old December 23rd, 2013, 01:46 PM
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120 ohms.

I pulled mine apart.

V=IR

The idea is to limit the current that can flow to around 100mA.
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  #29  
Old December 27th, 2013, 02:39 PM
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Is there a reason not to use the GM sender 340-011 vs the YBE100540? The GM unit comes with plug/wires. I have a Tdi so maybe others with an ECU will care.

I saw it here: http://www.defendersource.com/forum/...2&postcount=19
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  #30  
Old December 27th, 2013, 03:03 PM
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Quote:
Originally Posted by Lee View Post
Is there a reason not to use the GM sender 340-011 vs the YBE100540? The GM unit comes with plug/wires. I have a Tdi so maybe others with an ECU will care. I saw it here: http://www.defendersource.com/forum/...2&postcount=19
Because the GM sensor sits on top of the cable from what I recall.

The YBE eliminates the cable and is a much cleaner setup.

The YBE is also how land rover intended it to be.
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Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
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  #31  
Old December 27th, 2013, 04:33 PM
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Originally Posted by leastonce View Post
Because the GM sensor sits on top of the cable from what I recall
I'm pretty sure that GM sender will not work on the end of a cable as both would be male. I suspect people have been using it on the output of the stock V8 VSS box.
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  #32  
Old December 27th, 2013, 06:03 PM
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Originally Posted by Red90 View Post
I'm pretty sure that GM sender will not work on the end of a cable as both would be male. I suspect people have been using it on the output of the stock V8 VSS box.
Still a pigs ear setup and doesn't eliminate the back cable ..,
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Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
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  #33  
Old January 8th, 2014, 10:50 AM
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Okay. I updated the wiring diagram. Is this how you have it setup Jason?
Attached Files
File Type: pdf VDO-EFI-Wiring.pdf (8.3 KB, 134 views)
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  #34  
Old January 8th, 2014, 12:09 PM
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Andrew Dance
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Quote:
Originally Posted by MAX711 View Post
I just swapped out the VSS for a YBE100540 on my '94. It cured the bouncy speedo problem nicely, plus no more stupid speedo cables! I haven't connect the ECU to it yet because of what you said about burning out the YBE. Do you know for sure that it will burn out, did it happen to you? I don't want to break open my VSS because it still works. Do you know what value the resistor is? Thanks
I ended up putting 0.25 watt 120 ohm resister in line with the ECU and it's been fine
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  #35  
Old January 8th, 2014, 07:01 PM
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That sounds perfect. Yes the ECU will burn out the YBE. The VSS is basically the same internals but includes the resistor.
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  #36  
Old January 25th, 2014, 07:35 PM
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Can someone confirm my wiring? I have a Tdi (so no ECU) so i wired it up in the following manner:

Pin 3 - Ground
Pin 4 - Power
Pin 2 - YBE
Pin 8 - YBE

Does this sound right? thx
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  #37  
Old January 25th, 2014, 08:05 PM
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Quote:
Originally Posted by Lee View Post
Can someone confirm my wiring? I have a Tdi (so no ECU) so i wired it up in the following manner: Pin 3 - Ground Pin 4 - Power Pin 2 - YBE Pin 8 - YBE Does this sound right? thx
Can't remember but you won't kill the speedo getting it wrong.
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Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
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  #38  
Old January 25th, 2014, 08:33 PM
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If just by itself (no EFI signal) then the VBE goes to pins 7 and 8. If with an EFI signal, see my wiring diagram a couple of posts up.
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  #39  
Old February 15th, 2014, 08:32 AM
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Thanks for all your help guys!!!

After wiring to John's instructions, everything works great. I sourced the YBE from John Craddock, the wire/plug from Atlantic British and the VDO from www.eGauges.com

Mack at eGauges.com was super helpful working with me to get the speedo pre-programmed to have my original odometer reading.

-Lee
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  #40  
Old February 15th, 2014, 09:19 AM
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Quote:
Originally Posted by Lee View Post
Thanks for all your help guys!!! After wiring to John's instructions, everything works great. I sourced the YBE from John Craddock, the wire/plug from Atlantic British and the VDO from www.eGauges.com Mack at eGauges.com was super helpful working with me to get the speedo pre-programmed to have my original odometer reading. -Lee
How did the preprogramming process work? Did they so it prior to shipping or did you do it?
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