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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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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76-914 |
Jun 4 2014, 02:39 PM
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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 |
Not completely confused, yet. (IMG:style_emoticons/default/biggrin.gif) You state that the ground should be the same size "if" it is carrying the same amount of current. How is this determined? Let's say I have a circuit that requires a 12 gage wire. Does the ground carry that same force or has that amount now dropped because it has passed through the device it supplies? Does a lamp circuit that may require 5 amps require a ground the same size or can it be smaller because the lamp has consumed most of the flow?
These reference grounds that you speak of; are they best routed back to the BAT? TOM suggested (and I did this) to loop or connect all my grounds in the engine compartment via a large ga wire. And yes, my 02 sensors do have a separate ground wire. That's a reference ground, right? Thx Kent |
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