Schematics for Ignition system

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andyf97
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Schematics for Ignition system

Post by andyf97 »

Greets Guys and Gals,

I wonder could anyone of you shed some light on the ignition coil and module of a VW Polo 94, maybe somebody has a schematic showing the hall effect sensor.

I have on my table an ignition transformer, it has three wires

GND
In
+

I assume the plus is Battery +
Gnd to be Battery -

But the In, I am lost. I know this is a signal derived from a hall effect sensor but what actually is happening to the input voltage wize.

Is it usually Battery + and the hall effect sensor switch connects it to zero
or
Is it usually zero and the hall effect sensor switch connects it to Battery +

If in its active state, does the transformer generate HV, or does it rely on constant changes of the In signal.

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PapaJo
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Re: Schematics for Ignition system

Post by PapaJo »

In is the trigger pulse coming from ecu.
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