All about our superior engine management unit.
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bmwmaster - Posts:58
- Joined:Tue Dec 02, 2014 3:38 am
Ground wireing correct?
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by bmwmaster » Tue Aug 02, 2016 11:37 am
In my car (e30 325i) i have connected emu trough my oem 55pin connector and wanted to ask if the grounding is ok this way? or schould i change it?
In this way i think emu has its seperate ground point. this point normaly is used for all the elektronic and shields and analog sensor signals in the car (now they are connected to emu B18). But its maybe not the same point as the power grounds......would this maybe cause loops and problems? schould i connect it other way?
Thx
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Kelley - Posts:1
- Joined:Thu Feb 09, 2017 8:59 am
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by Kelley » Thu Feb 09, 2017 9:06 am
The basic purpose of an earth-grounding system is to protect the electrical system and equipment from super-imposed voltages caused by lightning and accidental contact with higher voltage systems. The earth-ground connection also prevents the buildup of static charges on equipment and materials.The Ground Wire. The term "ground" refers to a connection to the earth, which acts as a reservoir of charge. A ground wire provides a conducting path to the earth which is independent of the normal current-carrying path in an electrical appliance.
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RHD - Posts:537
- Joined:Tue Oct 07, 2014 4:28 pm
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by RHD » Thu Feb 09, 2017 10:23 am
we have done a few e30's and unfortunately the sensor ground is also shared with the chassis ground on the factory harness, this is not ideal but still works fine, however it really is best to run some completely separate earth wires directly from the EMU plugs to the engine block. I would recommend doing this, its easy enough and then you wont have any problems.
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LydiaLoftis - Posts:1
- Joined:Wed Apr 12, 2017 10:53 am
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by LydiaLoftis » Wed Apr 12, 2017 10:59 am
We prefer earth -grounding system for protecting electronic devices from super imposed voltages. Unexpected variation in voltage affect the devices and it creates more problems. You can go though
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jamesanderson - Posts:4
- Joined:Tue Jun 20, 2017 7:52 am
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by jamesanderson » Tue Jun 20, 2017 7:57 am
Earth-grounding system will protect the whole electronics circuit project. But the grounding system should be ensured so that there is no difficulties with the project.
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jamesanderson - Posts:4
- Joined:Tue Jun 20, 2017 7:52 am
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by jamesanderson » Fri Nov 17, 2017 12:04 pm
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RHD - Posts:537
- Joined:Tue Oct 07, 2014 4:28 pm
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by RHD » Sun Dec 03, 2017 6:26 am
ALL the ground wires in an e30 loom attach at the same point in the engine bay, brown and also the brown/orange wires are all the same throughout the entire harness and all ground at one single point on the strut tower. Its a good idea to move that ground point from the strut tower to the engine block