Electrical Question #15 Need Help Please, I'm totally stumped this time |
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Electrical Question #15 Need Help Please, I'm totally stumped this time |
76-914 |
Apr 6 2014, 06:33 PM
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#1
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,611 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California |
I'm going to have several electrical questions. 1st, Is pin #8, on the 14 pin plug at the relay board, the only switched 12v+ source in the engine compartment? TIA, Kent
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Tom |
Jun 4 2014, 05:54 PM
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#2
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Advanced Member Group: Members Posts: 2,139 Joined: 21-August 05 From: Port Orchard, WA 98367 Member No.: 4,626 Region Association: None |
Kent,
Answer for your question about wire size for ground. The current through the complete circuit is the same at all points of the circuit. So 12 Ga. supply into equipment, 12 Ga. ground out. Tom (IMG:style_emoticons/default/smile.gif) |
76-914 |
Jun 5 2014, 09:07 AM
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#3
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,611 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California |
Kent, Answer for your question about wire size for ground. The current through the complete circuit is the same at all points of the circuit. So 12 Ga. supply into equipment, 12 Ga. ground out. Tom (IMG:style_emoticons/default/smile.gif) Thx Tom, that's what my gut was telling me but this is one of those areas where I prefer professional knowledge over my common sense. (IMG:style_emoticons/default/biggrin.gif) **NOTE** FWIW, I believe I ran into one of those "reference ground" issues, yesterday. There is a small harness that goes from my fuel pump controller to the pump. One of those wires is a ground. If left open the pump runs continuously but when connected the pump senses pressure. (IMG:style_emoticons/default/smile.gif) |
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