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displaying posts 1 to 7 of 7
| Author | Subject: How measure or read sensors directly. |
 The Coolest
Junior User  Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #1
I have an idea for a small project, but before I start planning and ordering the parts needed I want to ask a couple of questions.Would it be possible to rig something to allow me to take readings directly from sensors like the water temp/RPM sensor/speedo sensor while still having them connected to to their relevant gauges on the dash and working correctly? |
 Posted 6th May 2013 at 01:33
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #2
Can anyone with Autodata or similar, like in the Sensor Testing thread post information about the following sensors:Oil pressure gauge sender (the one that is located above the oil filter) Oil temp sensor (located in/by the oil sump) The ambient temp sensor (In the side mirror) |
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Posted 11th May 2013 at 09:23
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #3
Yes, it's possible. You would just need to construct small looms which could go in-between the current loom plug and the sensor, with a spare plug in the middle to take your readings from.  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 11th May 2013 at 10:06
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #4
Great! Thanks.And connecting to them in parallel won't affect the readings from them? Also, any idea how to make this sort of loom? |
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Posted 11th May 2013 at 10:17
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monty-69
Senior User  Location: Colne Registered: 02 Jul 2006 Posts: 790 Status: Offline |
Post #5
http://www.dat-equipment.com.au/products/detail/1-automotive-electrical-test-equipment/flypage/8-te024-wire-piercing-probe.html?sef=hcfp These are spring loaded and put a tiny pin hole in the wires which can be easily covered with heat shrink. Connect to a multimeter or oscilloscope for waveforms. Some need female-female wires to connect to them to a multimeter. You can get a gunson multimeter lead kit off ebay for around £25. Amazon do some wire piercing probes that work by tightenng a screw but they arnt cheap. If you find any at the right money please let me know! Hope this helps  |
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Posted 11th May 2013 at 12:04
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #6
I've started an Arduino project which will be a DIY version of something like this:http://www.nengun.com/defi/link-meter-advance-zd This will be going into the car, and a 20x4 alphanumeric LCD will replace the existing dashboard clock/temp display. So I'm just wondering whether having another meter connected to existing sensors will affect their readings to the ECU or dashboard gauges or not. |
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Posted 11th May 2013 at 12:22
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The Coolest
Junior User Location: Tel Aviv Registered: 15 Aug 2012 Posts: 64 Status: Offline |
Post #7
I'm still stuck.Are there any docs or Autodata information about the Oil temperature sensor in the sump and the oil pressure sender above the oil filter? Something similar to this:  I can't seem to find anything about these two sensors, and I want to use the stock sensors to both save costs and prevent potential problems with fitting aftermarket VDO sensors with adapters. |
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Posted 18th May 2013 at 13:52
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