VDO Wiring Diagrams? - Defender Source
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  #1  
Old May 25th, 2016, 10:35 PM
RBBailey
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VDO Wiring Diagrams?

So I bought a whole compliment of new gauges for my project. But I did not get any wiring diagrams or literature of any kind with the gauges. Not sure why.

I have found PDF's in searches, but most are not direct matches to the exact model gauge I have. This may be normal, but I have nothing to go by to know if it is.

Anyone know where I can go to see and click on a list of diagrams/instructions for these gauges?
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  #2  
Old May 25th, 2016, 10:52 PM
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Most gauges I have worked with have been fairly self explanatory, but VDO vision series gauges I have bought typically come with an instruction sheet . Ground to the gauge, ground to the lamp. Power to the lamp, power to the gauge, Signal wire to the gauge. When they get complicated is when you have a tach with dip switches to set. Pyrometer leads and boost gauge tubes are also pretty self evident. The key to good operation is great grounding.
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  #3  
Old May 25th, 2016, 11:10 PM
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I don't know if this will help you but here's a diagram that I made for the power wiring for the gauges.



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  #4  
Old May 25th, 2016, 11:14 PM
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Yes. It does seem straight forward. But all new territory for me, with lots of $$$$$ invested, and no room to fail = slow and sure.

Yes that will help if I don't die of old age before getting that far! Nice looking diagram.

------ Follow up post added May 25th, 2016 08:17 PM ------

Chris. Am I right, that you have a single ground for both lighting and gauge operation?

Also, love that speedo, could not find that when I ordered!
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Old May 25th, 2016, 11:33 PM
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Yes, single ground
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Old May 25th, 2016, 11:55 PM
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So.... I am hooking up the EGT and oil and water on temp terminals so that I can run the engine, monitor the vitals and check for leaks and such.

The ETG gauge is showing no temp response while engine is running and doing some revving.

PSI and water temp seem to be working fine.
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  #7  
Old May 26th, 2016, 08:58 AM
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You need a load on the engine to build temp in the exhaust. That is a gauge you don't need to run it and move it around your driveway.
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