1987 Chevrolet S-10 negitive wire on coil

1987 CHEVROLET S-10
1 MILES • 2.5L • 4 CYL • 2WD • MANUAL
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DANCAMPBELL
  • MEMBER
  • 1 POST
i am trying to locate the negative wire and its color on the negative side of the coil so i can hook a tach
Aug 11, 2014 at 11:52 AM
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MLDANIELS2000
  • ✓ASE Certified Mechanic
  • 227 POSTS
  • ASE Certified Mechanic
Wiring diagrams are unclear and very scarce for all systems of pre OBD2 vehicles (before 1996). It is going to be trial and error. Try darker colored wire.
Aug 11, 2014 at 4:50 PM
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