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Guest
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Sensor Magnet Polarity for Direct Fire
I am installing a Haltech E6k on a Porsche motor and using direct fire and a twin plug setup. I need to mount the magnets in the sensor wheel and need to determine the polarity of the magnets. I know there are 2 simple ways of doing this. One is with another magnet that is labeled but I can't find one. Another method is using a compass. Does anyone know how to use a compass to determine the polarity of a magnet?
 ------------------ Mark www.mark.hargett.com mark@hargett.com |
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03-01-2001, 07:51 AM
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Mark,
What do the instructions say? If they don't mention polarity, then it doesn't matter. The pickup coil just creates a pulse waveform when a magnet swings by. ------------------ Warren Hall 1973 911S Targa |
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03-01-2001, 08:08 AM
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The instructions have a way of testing polarity using the sensor itself. However, I am using a newer style sensor and the directions don't apply. It does matter what polarity because the one sensor handles both the "home" trigger and the "main trigger". Basically, the ecu needs to see a home trigger to know that the next main trigger is for ignition channel 1, the next trigger is for ignition channel2, etc. It does this until it sees another home trigger and then starts the process again. Since 1 sensor has to determine the difference between a home trigger and a ignition trigger, the home magnet is south and the other magnets are north. As for using a compass, I am assuming you do something like put the magnet up to the pointer and if it repels the north side of the pointer it must be the south side of the magnets since oppisites attract. I just need to make sure because if I get it wrong, I'm preverably screwed! Thanks.
------------------ Mark www.mark.hargett.com mark@hargett.com |
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03-01-2001, 09:14 AM
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