Earths or Grounds as Americans calls 'em

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   Just got some guff on earths / grounds.
https://www.rockauto.com/Newsletter/

If you are measuring resistance between
a suspect earth cable / wire and good earth,
or the voltage of the supply to an ECU,
then you're best off with a needle multimeter.

https://www.ebay.co.uk/sch/i.html?_from=R40&_nkw=analogue+multimeter&_sacat=0&_sop=15&Display=Analogue&_dcat=58277&rt=nc&LH_PrefLoc=1

A piercing probe is a good idea when you are testing an earth.

https://www.ebay.co.uk/sch/i.html?LH_PrefLoc=1&_udlo=5&_sop=15&_osacat=0&_odkw=leads+multimeter+piercing&rt=nc&_from=R40&_trksid=p2334524.m570.l1313.TR3.TRC0.A0.H0.Xprobe+piercing.TRS0&_nkw=probe+piercing&_sacat=0

A negative cable with a crock clip that's long enough
to reach the battery earth is also a good idea.

I assumed you have a reasonable level of nouse.
If you have any questions bung 'em on here.
I'm sure someone can answer.

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Charlie Dog Members Profile Send Private Message Find Members Posts Add to Buddy List Yardie Joined: 07 Aug 19 Status: Offline Points: 304	Post Options Post Reply Quote Charlie Dog Report Post Thanks(0) Quote Reply Topic: Earths or Grounds as Americans calls 'em Posted: 21 Feb 20 at 20:30
	Just got some guff on earths / grounds. https://www.rockauto.com/Newsletter/ If you are measuring resistance between a suspect earth cable / wire and good earth, or the voltage of the supply to an ECU, then you're best off with a needle multimeter. https://www.ebay.co.uk/sch/i.html?_from=R40&_nkw=analogue+multimeter&_sacat=0&_sop=15&Display=Analogue&_dcat=58277&rt=nc&LH_PrefLoc=1 A piercing probe is a good idea when you are testing an earth. https://www.ebay.co.uk/sch/i.html?LH_PrefLoc=1&_udlo=5&_sop=15&_osacat=0&_odkw=leads+multimeter+piercing&rt=nc&_from=R40&_trksid=p2334524.m570.l1313.TR3.TRC0.A0.H0.Xprobe+piercing.TRS0&_nkw=probe+piercing&_sacat=0 A negative cable with a crock clip that's long enough to reach the battery earth is also a good idea. I assumed you have a reasonable level of nouse. If you have any questions bung 'em on here. I'm sure someone can answer.