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Old 08-06-2022, 12:58 AM
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Default VDO Speedo went Wacko!

On my 2011 BDR build while on a Saturday afternoon cruise, I noticed that the needle on the speedo was pinned all the way to the right, past the 220 MPH mark. Never seen that before in the past 10k miles on the car. Once I turned the car off (key off) and then turned the key back to the on position, the needle corrected itself and the speedo worked fine afterwards. Can someone please explain what happened?
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Old 08-06-2022, 08:00 AM
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The problem is most likely inside the Speedo as the mag pickup is sending a PPM (pulse per mile) signal to the gauge. A short, open circuit, failure on the mag pickup or wiring to the gauge will only give a zero reading.

You may want to call VDO (# at the bottom of this setup guide)
http://www.nsifleet.com/pdf/ProgrammableSpeedometer.pdf

Last edited by spdbrake; 08-06-2022 at 08:23 AM..
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Old 08-08-2022, 01:35 PM
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someone has to ask...were you going 220+ mph?
BDR0572, Ozzie Goat and Alfa02 like this.
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Old 08-08-2022, 02:31 PM
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I don't think he was really going 220 only that the needle was pinned to the far stop. He was probably only going 180.

Since it returned to normal on a restart about all you can do is monitor it.
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Old 08-08-2022, 07:11 PM
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Quote:
Originally Posted by 6t8stang View Post
someone has to ask...were you going 220+ mph?

So THATS what the issue was!!!!
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Old 08-09-2022, 10:18 AM
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Where is the sender for these units typically located? Again, VDO gage (0 - 220 MPH) on a 2011 BDR build.
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Old 08-09-2022, 10:26 AM
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Quote:
Originally Posted by SBSerpent View Post
Where is the sender for these units typically located? Again, VDO gage (0 - 220 MPH) on a 2011 BDR build.
With your combination and build era it should be in the differential.
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