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a/c wiring

  1. ECU and Tuning
    Hi guys, I'm having troubles trying to wire up my A/C. Here is the thing: all I need is a ground signal activated by the A/C pressure switch to allow the ECU command to activate the A/C compressor clutch. On 99-00 civics, the OEM setup connects this switch to A27 pin, which have a 5V signal if...
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