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earth wire question

Old 06-04-07, 07:22 PM
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earth wire question

The wiring diagrams say to wire the brown ground wire closer to the ecu than the black ground wire.

Im hooking the SAFC up to run with a HKS FCON where it will modify the pressure sensor signal to the FCON which has its own fuel maps.

should i be wire the brown wire closer to the stock ecu or to the FCON ecu???

Thanks
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Old 09-06-07, 10:00 AM
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I can only guess that the two seperate ground taps are to suppress high frequency ground noise.
I'd tap it closed to the stock ECU.
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