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-   -   Speedometer reference Sensor replacement! (http://forums.pelicanparts.com/porsche-911-technical-forum/1177449-speedometer-reference-sensor-replacement.html)

wazzz 05-15-2025 07:53 AM
Time for a beer. :)

ant7 05-15-2025 08:41 AM
Quote:
Originally Posted by wazzz (Post 12465233)
Time for a beer. :)
Indeed! http://forums.pelicanparts.com/support/smileys/wat6.gif

Thanks again to both you and Spuggy for your help on this one :)
Ant.

spuggy 05-15-2025 08:53 AM
Quote:
Originally Posted by wazzz (Post 12465233)
Time for a beer. :)
Heh. I was going to say "it's 5:00 PM somewhere" - but given the time zone you're both in, it's even appropriate/socially acceptable :D

:cool: you got it working Ant!

ant7 05-15-2025 08:54 AM
:) :cool:
Quote:
Originally Posted by spuggy (Post 12465275)
heh. I was going to say "it's 5:00 pm somewhere" - but given the time zone you're both in, it's even appropriate/socially acceptable :d

:cool: You got it working ant!

spuggy 05-15-2025 09:03 AM
Quote:
Originally Posted by Sliver911 (Post 12464588)
TIn searching further I realized that I installed the sensor backwards. Initially I put it in with the tabs facing in toward the transmission when on fact they should be facing outward. Will get car back on the lift this week and flip it. I’ll report back with the results.
Huh, never thought about that. Many reed switches aren't sensitive as to orientation.

But if one side/terminal were fixed in the package, then it could matter a lot - any magnet action would be moving the mobile side further away from the fixed terminal if it was inverted...

Fingers crossed it's that easy!

Sliver911 05-16-2025 11:26 AM
Quote:
Originally Posted by Sliver911 (Post 12464588)
Thanks for the replies all. In searching further I realized that I installed the sensor backwards. Initially I put it in with the tabs facing in toward the transmission when on fact they should be facing outward. Will get car back on the lift this week and flip it. I’ll report back with the results.
Installed new sensor correctly and no-go. Cannot seem to get any ohm readings while either out and running a magnet or installed and wheels turning. I used a metal pickup wand magnet and it does not register. Going to with ordering another sensor with the assumption it is bad (it’s a Uro) and on from. There

ant7 05-17-2025 02:39 AM
You have to swipe the magnet close to the rear of the sensor while watching your ohm meter response, its a bit fiddly to get the right orientation of the magnet, but if the sensor is ok, you will get the switch to make or break with a good strong magnet.
Ant.
Quote:
Originally Posted by Sliver911 (Post 12465989)
Installed new sensor correctly and no-go. Cannot seem to get any ohm readings while either out and running a magnet or installed and wheels turning. I used a metal pickup wand magnet and it does not register. Going to with ordering another sensor with the assumption it is bad (it’s a Uro) and on from. There

Sliver911 05-25-2025 01:24 PM
UPDATE. Bought a second sensor. Tested on bench with positive results. Installed and it works!!! Bad new sensor. Thank you all for the feedback and the help. Side note helps to have a lift as the swap becomes a 10 minute job !!!

spuggy 05-25-2025 03:23 PM
Quote:
Originally Posted by Sliver911 (Post 12470855)
Bad new sensor.
Wow, that seems unlucky... Glad you got it sorted!

ant7 05-25-2025 10:16 PM
:)
Good to hear you got it sorted!
Ant.
Quote:
Originally Posted by Sliver911 (Post 12470855)
UPDATE. Bought a second sensor. Tested on bench with positive results. Installed and it works!!! Bad new sensor. Thank you all for the feedback and the help. Side note helps to have a lift as the swap becomes a 10 minute job !!!


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