Could OEM actually have a ground loop?? fixin up a fix
10-12-2006, 07:40 PM
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Could OEM actually have a ground loop?? fixin up a fix
So i was doing a little 6 hour reading at work today, and was reading about ground loops. Ground loops happen when 2 (connected)devices are connected to 2 different grounds.
That got me thinking. ALot of these grounding systems are making a HUGE ground loop. That messes up alot of sensors and shoot. Also looking at OEM, there is a ground loop.
The valve cover is grounded to the (central ground) on the chassis radiator support.
The transmission is grounded to the (central ground) on the chassis right runner.
Everybody knows these 2 parts are connected through bolts. The tranny is connected to the block, the block is connected to the head, and the head is connected to the Valve cover. So obviously these 2 parts are connected.
So these connected parts have 2 grounds. This is a huge LOOP.
What if you disconnected the wire from the Valve cover to the radiator support, and ran wires from the Valve cover, to the Intake manifold to the head, to the transmission, to the - battery terminal, (or) just to the stock transmission grounding spot?
Wouldnt this just creat a large chain, not a loop? why does honda do this?
That got me thinking. ALot of these grounding systems are making a HUGE ground loop. That messes up alot of sensors and shoot. Also looking at OEM, there is a ground loop.
The valve cover is grounded to the (central ground) on the chassis radiator support.
The transmission is grounded to the (central ground) on the chassis right runner.
Everybody knows these 2 parts are connected through bolts. The tranny is connected to the block, the block is connected to the head, and the head is connected to the Valve cover. So obviously these 2 parts are connected.
So these connected parts have 2 grounds. This is a huge LOOP.
What if you disconnected the wire from the Valve cover to the radiator support, and ran wires from the Valve cover, to the Intake manifold to the head, to the transmission, to the - battery terminal, (or) just to the stock transmission grounding spot?
Wouldnt this just creat a large chain, not a loop? why does honda do this?
10-12-2006, 08:10 PM
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Re: Could OEM actually have a ground loop?? fixin up a fix (YoungKadafi)
wow man stop thinking so hard and get a gf. JK.
Im not too sure why Honda did what they did, but i trust that they did their job well, creating the grounding as they did.
Im not too sure why Honda did what they did, but i trust that they did their job well, creating the grounding as they did.
10-12-2006, 08:17 PM
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Re: Could OEM actually have a ground loop?? fixin up a fix (DeadEnd9009)
electricity will travel in one path and in one direction. the whole looping thing does not make sense to me. the electricity will go from the positive battery terminal and go through the system in one direction. it is DC, not AC.
10-12-2006, 08:58 PM
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Re: Could OEM actually have a ground loop?? fixin up a fix (Kris.)
haha thanks for the gf joke, funny since we just broke up tonight, so yea i think i am going a little psycho.
10-12-2006, 09:44 PM
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Re: Could OEM actually have a ground loop?? fixin up a fix (YoungKadafi)
It's a series of "loops" (quotes on purpose, see below) on purpose. The idea is to not make one big central ground, but to make a whole bunch of distributed grounds that are all about the same. Ground isn't always a big rock you tie the low end of a circuit to, sometimes it floats around. A car is a nightmare for electrical design, especially within a foot or two of the engine. It's a design compromise, and it works pretty damn well.
Oh, and a ground loop only happens when there is appreciable resistance in one leg of the loop. Big fat copper wires connected in what amounts to a web won't form an actual ground loop.
And if you really want to blow your mind, the electrons actually move from negative to positive. Seriously. All that stuff you always believed about electricity....
/EE
-dave
Oh, and a ground loop only happens when there is appreciable resistance in one leg of the loop. Big fat copper wires connected in what amounts to a web won't form an actual ground loop.
And if you really want to blow your mind, the electrons actually move from negative to positive. Seriously. All that stuff you always believed about electricity....
/EE
-dave
10-12-2006, 10:21 PM
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Re: Could OEM actually have a ground loop?? fixin up a fix (dpaton)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dpaton »</TD></TR><TR><TD CLASS="quote">It's a series of "loops" (quotes on purpose, see below) on purpose. The idea is to not make one big central ground, but to make a whole bunch of distributed grounds that are all about the same. Ground isn't always a big rock you tie the low end of a circuit to, sometimes it floats around. A car is a nightmare for electrical design, especially within a foot or two of the engine. It's a design compromise, and it works pretty damn well.
Oh, and a ground loop only happens when there is appreciable resistance in one leg of the loop. Big fat copper wires connected in what amounts to a web won't form an actual ground loop.
And if you really want to blow your mind, the electrons actually move from negative to positive. Seriously. All that stuff you always believed about electricity....
/EE
-dave </TD></TR></TABLE>
wow i couldn't have said it better. ground loops are made on purpose and honda has done a very good job with their grounding...atleast it's not a volkswagen....every ground wire is wired to one big ground block....and they wonder why they have so many wiring problems...
Oh, and a ground loop only happens when there is appreciable resistance in one leg of the loop. Big fat copper wires connected in what amounts to a web won't form an actual ground loop.
And if you really want to blow your mind, the electrons actually move from negative to positive. Seriously. All that stuff you always believed about electricity....
/EE
-dave </TD></TR></TABLE>
wow i couldn't have said it better. ground loops are made on purpose and honda has done a very good job with their grounding...atleast it's not a volkswagen....every ground wire is wired to one big ground block....and they wonder why they have so many wiring problems...
10-13-2006, 04:43 AM
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Re: Could OEM actually have a ground loop?? fixin up a fix (Bond)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bond »</TD></TR><TR><TD CLASS="quote">....every ground wire is wired to one big ground block....and they wonder why they have so many wiring problems...</TD></TR></TABLE>
Actually, that wouldn't be so bad, if they didn't have such tiny wires connected to that rock of a ground. and actually used properly sized ground returns from every point on the chassis, instead of using an electrically horrible unibody as a ground return. They did the whole thing half-assed which is why it sucks. A lot of 70s/80s american cars have the same kind of problem. The unibody was used as a ground, but wasn't half as good as a chunk of 14WG wire at some points.
Actually, that wouldn't be so bad, if they didn't have such tiny wires connected to that rock of a ground. and actually used properly sized ground returns from every point on the chassis, instead of using an electrically horrible unibody as a ground return. They did the whole thing half-assed which is why it sucks. A lot of 70s/80s american cars have the same kind of problem. The unibody was used as a ground, but wasn't half as good as a chunk of 14WG wire at some points.
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