Ground wire towards rear end
#1
Ferrari Red Hotness
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Ground wire towards rear end
I noticed what remains of a ground wire that comes out from under one of those protective pannels around the back of the car, almost parallel with the differential. I'm not entirely sure what it goes to, as the wire is demolished and I don't see anything nearby it could go to.
Anyone know what it is? I looked in the service manuals and didn't find it.
I can attach a pic if need be.
Anyone know what it is? I looked in the service manuals and didn't find it.
I can attach a pic if need be.
#3
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Do attach a pic, but I think I may have had the same thing as you. Mine was from the underbody to the aluminum brace back there. I replaced it with another wire, but I'm not quite sure what the point of it is since the brace is bolted into the underbody.
#6
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Why would the exhaust need a ground?? I'll try to hook it back up, but we already have most of the stuff underneath bolted up in the way. If I can't hook it up, is it going to cause a problem?
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#8
What's your point ?
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Just another ground that once it dissapears puts more of a load on one of the other grounds. This is one that when hooked up helped lessen the 3k hesitation on my car.
#9
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Originally Posted by CantGoStraight
Just another ground that once it dissapears puts more of a load on one of the other grounds. This is one that when hooked up helped lessen the 3k hesitation on my car.
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Nakd n Fearless (09-30-19)
#12
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^It doesn't hurt, but I don't think you'll see any difference with no O2 feedback. That said, these days I'm also on a PFC, open loop and even with the same exhaust. Mine's still hooked up out of habit.
There also another ground you might check back there. There's a ground block with a 10mm bolt for the fuel pump inside just under the hatch latching mechanism. I think cleaning that's a good idea.
There also another ground you might check back there. There's a ground block with a 10mm bolt for the fuel pump inside just under the hatch latching mechanism. I think cleaning that's a good idea.
Last edited by Sgtblue; 10-01-19 at 05:29 AM.
#13
RX-7 Bad Ass
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This is anecdotal, but on the FC I noticed that cars that didn't have the ground hooked up were more likely to have rust problems with the exhaust. I think having it ground could help with that. If you have an all stainless exhaust it's moot, though .
I have an all stainless exhaust and no 1-wire O2 sensor at all on my car and I still have it connected .
Dale
I have an all stainless exhaust and no 1-wire O2 sensor at all on my car and I still have it connected .
Dale
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