Lotus Elan

No Tacho after accuspark and Ballast resistor

PostPost by: bob_rich » Mon Nov 19, 2012 6:43 pm

HI Ed

According to the wiring diagram I have both wires are white. The male and female bullets control the way it is connected. A check with test meter on ohms should help you get the connection correct. You may not need to change this wire because it is the feed current to the module power that must not go through the coil. You can get the effect I showed in the sketch by moving the connection for the module power from the coil to the ignition then that will achieve the same effect.

Hope that helps best of Luck

Bob
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PostPost by: T2P » Fri Aug 26, 2016 7:36 pm

There are tachs that require the inductive "kick" of the iginition coil to read.
This comes directly from the breaker points controlling the coil operation.

Having bypass the points, as in some electronic ignition designs, or eliminating it completely the tach sensor wire might need to be directly wired to the (-) pole of the coil to sense the inductive kick once again.

It worked with my situation. Review your tack's wiring and proceed with caution.
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