Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

NEGATIVE COIL HOOK UP HELP

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Old 10-31-2010, 05:33 PM
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Car: 1991 Camaro RS
Engine: 305 TBI
Axle/Gears: Open Diff
NEGATIVE COIL HOOK UP HELP

Im putting a tach in my 87 base model camaro and one of the wires needs to go to the negative side of the ignition coil. Which side is negative and can i pick it up some where else?

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Old 10-31-2010, 07:10 PM
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Re: NEGATIVE COIL HOOK UP HELP

Most factory harnesses have all the wires installed regardless of whether a optional item is fitted or not
Tacho wire is white ( marked to int cluster from dist in diagram )

http://www.austinthirdgen.org/mkport...ine_wiring.gif

Look for wire under the dash or at cluster plug ( not used )

Failing that, connector is marked Tach on HEI dist cap next to the pink power wire

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