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ashman40
Samba Member
Joined: February 16, 2007
Posts: 15985
Location: North Florida, USA
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 Posted: Mon Jan 21, 2019 3:44 pm Post subject: Re: I need some electrical help please |
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| advinnie wrote: |
Here's the link to the video
Link
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It looks like you have your black probe connected to the body ground at the side of the engine bay. While the red probe is on the turbo housing? Normally these two spots while physically close to each other are actually connected electrically via the ground strap at the front end of the transmission.
The reading is fluctuating suggesting it could be an AC voltage instead of a DC voltage? Did you try switching the MM to read Voltage AC??
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AshMan40
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'67 Beetle #1 {project car that never made it to the road  }
'75 Beetle 1200LS (RHD Japan model) {junked due to frame rot}
'67 Beetle #2 {2019 project car - Wish me luck!} |
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advinnie
Samba Member
Joined: November 18, 2011
Posts: 1389
Location: oxfordshire
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| Posted: Tue Jan 22, 2019 12:01 am Post subject: Re: I need some electrical help please |
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| No the MM is definitely set to DC. It does not matter where I place the red probe on the engine it could be on the turbo, exhaust, manifolds, alternator I get the same results. |
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ashman40
Samba Member
Joined: February 16, 2007
Posts: 15985
Location: North Florida, USA
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| Posted: Tue Jan 22, 2019 6:17 am Post subject: Re: I need some electrical help please |
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Sorry, maybe I wasn't clear. When your meter is set to VDC but is connected to an AC voltage source the readings jump around like in your video. Try setting your MM to read Volts AC and retest. Do you get a steady AC volt reading instead of a fluctuating one?
Your alternator actually creates alternating current (AC) not DC. This is converted to DC voltage before it is output on the B+. I'm wondering if the AC is bleeding out into the ground?
_________________
AshMan40
---------------------------
'67 Beetle #1 {project car that never made it to the road }
'75 Beetle 1200LS (RHD Japan model) {junked due to frame rot}
'67 Beetle #2 {2019 project car - Wish me luck!} |
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advinnie
Samba Member
Joined: November 18, 2011
Posts: 1389
Location: oxfordshire
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| Posted: Tue Jan 22, 2019 8:37 am Post subject: Re: I need some electrical help please |
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I see what your saying now I will have to wait till tomorrow then I will give it a go.
It's snowing here now in the UK 🇬🇧 and well its about 3mm deep so the UK 🇬🇧 as always has shut down 😂😂😂😂 |
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Edubnogales
Samba Member
Joined: December 16, 2018
Posts: 5
Location: Santee
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| Posted: Wed Jan 23, 2019 10:09 am Post subject: Re: I need some electrical help please |
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Need some help...mystery relay under rear driver side seat of my 69 Bug....what's it for and how is it to be hooked up? Any advice would be appreciated. Thanks!
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Starbucket
Samba Member
Joined: April 30, 2007
Posts: 4025
Location: WA
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| Posted: Wed Jan 23, 2019 12:37 pm Post subject: Re: I need some electrical help please |
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| Just a guess, rear window defroster grid. What is the number on it? |
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Edubnogales
Samba Member
Joined: December 16, 2018
Posts: 5
Location: Santee
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| Posted: Wed Jan 23, 2019 12:57 pm Post subject: Re: I need some electrical help please |
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| Thanks Statbucket. I confirmed that it is. Much appreciated! |
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