Need help locating the tachometer wire color and or location

1993 MERCEDES BENZ S320
165,000 MILES
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KENNYSMITHSLC
  • MEMBER
  • 1 POST
Cant find anything on the net regarding this question, need help locating this wire/color and its location.I would make a donation now but credit card is at home, If you can help me I will make a donation on my next question. Can you help? Thank you, Kenny Smith
Jan 5, 2012 at 1:55 PM
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RIVERMIKERAT
  • ✓Experienced Mechanic
  • 6,106 POSTS
Tachometer feed is the ground or negative wire on the coil.
Jan 6, 2012 at 11:32 PM
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RIVERMIKERAT
  • ✓Experienced Mechanic
  • 6,106 POSTS
The wire to the tach that gives the tach its engine speed signal is usually green. Our reference shows the ground wire to the coil to be black.
Jan 6, 2012 at 11:44 PM
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