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A little help with a Mulitmeter? Anybody? 200

posted by  Swedespeed240 on  Mon Aug 29 09:03 CST 2005
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last visit: Tue Jun 26 10:13 CST 2012
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Hey all,

Just picked up a decent Multimeter from Home Depot, looking forward to checking out some pesky electrical stuff...

Does anyone have an special hints, websites, advice etc. on testing useful stuff like fuel pump circuitry (current) and fuses and things like that? Again, Im not a whiz with electronics, but enough to know what the hell im doing, but as always, any help is more than appreciated!

Thanks much, and enjoy the bricks!

--
Spencer 1992 244 190K : Bosch LH 2.4 Jetronic FI








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    A little help with a Mulitmeter? Anybody? 200

    posted by  someone claiming to be Skip on  Tue Aug 30 02:24 CST 2005 [RELATED]

    Just as with the car itself, read the owners manual. Usually the 10 amp circuit is separate and the the lead(s) will need to be plugged into a separate jack. The best use I made of the hi current function was to diagnose a bad fuel pump. To do that, I removed the fuse and connected the leads to the terminals in the fuse box.

    Skip
    '93 850GLT
    '83 242TI Flathood








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    A little help with a Mulitmeter? Anybody? 200

    posted by  yama on  Tue Aug 30 00:42 CST 2005
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    last visit: Fri Oct 25 05:26 CST 2013
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    The Volvo green manuals give a lot of trouble shooting guidelines based on the use of a multimeter. If you don't already have a copy the lh2.4 fuel injection one would be good to get. Besides for that just ask some questions on what to expect for a particular problem that you might encounter.








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    A little help with a Mulitmeter? Anybody? 200

    posted by  someone claiming to be Manolo on  Mon Aug 29 17:47 CST 2005 [RELATED]

    You understand that to check current flow though a motor, you'll need a clamp-on ammeter, right? The internal ammeter on a VOM will only measure a few milliamps.

    Motor current is a handy thing to be able to measure, but I have never really NEEDED to measure motor current except on a starter motor.








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      A little help with a Mulitmeter? Anybody? 200

      posted by  darmstrong on  Mon Aug 29 22:06 CST 2005
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      last visit: Sat Sep 13 12:21 CST 2014
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      It's not hard to find inexpensive VOMs that read up to 10 amps. They work well for measuring fuel pump current; starter motors though, I don't think so!

      --
      David Armstrong - '86 240(350k km?), '93 940T(270k km), '89 240(parts source for others) near Toronto








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    A little help with a Mulitmeter? Anybody? 200

    posted by  Sumerduckman on  Mon Aug 29 09:35 CST 2005
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    last visit: Tue Aug 21 11:31 CST 2007
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    Check out the electrical circuits section in the 700/900 FAQ, he has a link to the Fluke web site with some great info on using multimeters. Have fun!
    --
    Gary Gilliam Sumerduck VA, '94 940 na Regina 160k '86 240 190k







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