How long can I drive like this? And what should be done to fix it?? Also, how important is the ground that hooks to the catalytic converter?
How long you can drive like that is really dependent on how hard it is rubbing.
To fix this you can try simply adjusting the rubber mounts under the car....there might just be one bound up some. Also see if you can move any over to the other side of the exhaust.
The ground strap is very important. Without this strap it is likely that your O2 sensor will read wrong and cause your car to run rich.
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I'd take your car to the local exhaust shop and have them slightly bend it a very tiny amount. The exhaust ground is somehwat important, ive heard yey and ney on effects it has with the o2 sensor. hook it up
I'd take your car to the local exhaust shop and have them slightly bend it a very tiny amount. The exhaust ground is somehwat important, ive heard yey and ney on effects it has with the o2 sensor. hook it up
Don't have them bend it. Just bend the posts used to mount it so that it sits over some.
The O2 sensor works on a voltage creation between the sensor body and the wire to the ECU. If the sensor body is not properly grounded, through the strap, it is possible it will not be at the same potential as the ECU and therefore make it not operate correctly. Remember we are talking tenths and hundreths of a volt....not hard to get something that isn't grounded up that little bit in potential from the static produced through the flowing exhaust.
Guys I need some help I recently replaced my downpipe and cat and forgot to reattach the ground. So I need to know how many ground are there for the exhaust, I only remeber there was one for the cat. If I missed anything please let me know thanks.
I can't tell what you have going on by the picture. I assume that is a piece of metal wraped around the hanger so it should work fine. Rust might be a factor down the road.
"ground"??? I didn't know your exhaust ran off a electric current. You need to get a new exhaust hanger because that weak terminal end isn't gonna lst long at all. Go to the junkyard or to the dealer.
Anything holding that ring terminal in contact with the hangar? I'd be concerned it might not be getting very substantial contact. The small amount of current running through it will tend to make that problem worse.
The exhaust is grounded for the rear O2 sensor, and -oddly enough- radio noise suppression (I don't get that part either, so let's not).
Anything holding that ring terminal in contact with the hangar? I'd be concerned it might not be getting very substantial contact. The small amount of current running through it will tend to make that problem worse.
The exhaust is grounded for the rear O2 sensor, and -oddly enough- radio noise suppression (I don't get that part either, so let's not).
Yeah, we wouldn't want our 3 inch catless exhaust disturbing our music.
Anything holding that ring terminal in contact with the hangar? I'd be concerned it might not be getting very substantial contact. The small amount of current running through it will tend to make that problem worse.
I'll get some pliers and pinch it tighter, add a drop of jb wled to secure the deal
Quote:
Originally Posted by Syndicate13
Yeah, we wouldn't want our 3 inch catless exhaust disturbing our music.
Hey guys, I have the large core Streetimports intercooler 24x12x3 I am looking into installing it..today I centered it infront of my car and looked at the lower mount points. It seems that they are in the wrong spots. The radiator braces or something on the front underside piece of my car "bump" downward to house the bolts? there are two of them, about 2" long and 1/2 inch down. RIGHT in the spots where my intercooler's welded-on mounts are. Anyone with this core run into this problem? Any suggestions on how to fix it?
Second question, It seems my exhaust ground strap has been ripped in half and is no longer grounding my exhaust. Are there any serious or negative effects from this until I can get it fixed?
i duno about the core ive never seen or installed one.
as for the ground strap
its not MAJOR to not have it but it sure dont hurt. Its to ground the rear o2 sensor.
the samething just happened to me..i left the wire unhooked and it did not give me any codes or anything but the car was idling little funny...when i got on it the brake light and battery light came on..it went away in a little bit.....i dunno if it cuse of that ground wire
hello, i searched the site and couldnt find anything on this, so here is my question.
the car that this is on is my 92 GS
i bought an obx header and downpipe, and when i took the old downpipe off i noticed a braided copper strap, like a ground. it was connected to the dowmpipe and to the chassis of the car, and there is no spot on the new downpipe for this, and what i am wondering is of this is and important ground spot, for the oxygen sensor or somethin, or if i should just leave it off? so if anyone could help me out here that would be great.
"Sometimes" you can get a rear-o2 heater malfunction because of a missing/loose o2 ground stap. I wouldn't worry about it.. You could get a 3.5in t-clamp and stick it on the downpipe if you must..
ok thats probably what ill do. because it not really the mileage im worried about. its when the car warms up and im driving at a constant speed usally in third or fourth, that the engine sputters and since its a manual it jerks pretty roughly. thats when the accelerator is like at the exact point to where it would keep the car going at the same exact speed that it does this type of thing. could this be why it is doing this?
also i have a bad ISC motor, with three bad coils on it. could that be related in this in any way?
Although the only thing that makes sense out here is that it's a ground for the oxygen sensor, that strap on the exhaust pipe is a ground for radio interference. No, I have no idea how the exhaust is supposed to generate static. But apparently someone, somewhere did.
Oxy sensors carry a grounding wire in their circuitry- they don't count on the exhaust as a ground path.
Although the only thing that makes sense out here is that it's a ground for the oxygen sensor, that strap on the exhaust pipe is a ground for radio interference. No, I have no idea how the exhaust is supposed to generate static. But apparently someone, somewhere did.
Oxy sensors carry a grounding wire in their circuitry- they don't count on the exhaust as a ground path.
That's an interesting bit of info about the sensors. Will keep this in mind.
As you have said in the past (probably more than most can count), the "grounding" strap that connects to the catalytic converter (or more accurately, the heat sheild) is to supress noise or some sort of radio disruption.
However, I have to agree with the post below more.
Quote:
Originally Posted by ginsu417
It actually connects to the heat sheild around the exhaust if I remember correctly. It's just there to absorb any electrostatic charge present in that part of the exhaust system. It doesn't really do anything useful, and I kind of wonder why they bothered to put it there.
I was searching around, and found this little interesting link that seems to support the notion that the straps which connect to the exhaust system are actual grounding straps, and thus are there to "offset" any positive charges that may be present within the exhaust system.
BTW I tried to fix the little inconsistancies in the photos linked above. I'm sure I'm not the only one who has experiece with these on their CDs.
I also read through the section discussing the "main" function of these grounding straps. But I think the discussion has changed. The argument is now something like "What do these grounding straps do - reduce radio/noise disruption or something else?" I believe these grounding straps, whatever their primary purpose, also serve a secondary purpose (and a more important function IMO).
As it is stated in the CD Manual, the primary purpose is to reduce radio interference. But the link I posted above seems to support the theory that these grounding straps also create grounding points for the exhaust gases which create small (even minute) positive eletrical charges.
Thus, if what I say is true, the newbies are (at least, partially) correct in assuming these straps are for grounding purposes. They are pounced on and told these straps are definately not for any type of grounding purpose, but I'm not so sure that is the case.
BTW I tried to fix the little inconsistancies in the photos linked above. I'm sure I'm not the only one who has experiece with these on their CDs.
Yeh. The scanning on Vineet's CD, and all the pirated versions from eBay are not top-line.
If you're still using Acrobat, delete it and get Foxit. It's still sucking PDF, but at least you don't have to wait the ten minutes for Adobe to tell you who swept the floor at the development quonset.
Quote:
As it is stated in the CD Manual, the primary purpose is to reduce radio interference. But the link I posted above seems to support the theory that these grounding straps also create grounding points for the exhaust gases which create small (even minute) positive eletrical charges.
Thus, if what I say is true, the newbies are (at least, partially) correct in assuming these straps are for grounding purposes. They are pounced on and told these straps are definately not for any type of grounding purpose, but I'm not so sure that is the case.
So, if the lightning storm in the exhaust wasn't grounded out, it might make noise over the radio? I think it's a distinction without a difference. There's what, two or three capacitors in the DSM loom that are there for noise suppression. Perhaps they're also to prevent enough "noise" that might otherwise affect the ECU?
I have had this strap off for almost 3 years now and have always had a CEL for o2 sensor heater circuit malfunction. I will attach it back on and see if it makes a difference. I really doubt it!
Wanted to post these photos up somewhere before I forgot (again). When my upgraded exhaust system is installed, this will be gone (because it will be too short for that particular placement), but I certainly plan on installing another grounding wire (or two).
The point in posting these photos up is to show that one does not need to stick with the old grounding strap. There's nothing special about it. I would disagree with kmoore in his install guide seen here. He basically tells you to reuse the old strap. I would suggest "upgrading" (as silly as it may sound) to a larger wire gauge. I used some of the 4-gauge wire that was left over after brewing up a home-made grounding kit.
On a side note, I will suggest adding another grounding point close to the turbine housing. I plan on adding the second exhaust grounding strap right on the DP flange (the flange that attaches to the O2 housing). I'm sure I can find another random screw on the body I can utilize as the corresponding grounding point without much issue.
Sorry to bring up an old thread, i wanted to know what was the gauge of the wire you used for that grounding strap you made dsmunknown ? I'm looking to make one for my car as well just like yours.
Thanks.
Sorry to bring up an old thread, i wanted to know what was the gauge of the wire you used for that grounding strap you made dsmunknown ? I'm looking to make one for my car as well just like yours.
Thanks.
Quote:
Originally Posted by DSMunknown
...I used some of the 4-gauge wire that was left over after brewing up a home-made grounding kit....
Yep. Looks like 4ga.
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Wes - '97 Talon Tsi AWD
![Exhaust ground wire? [Merged 3-7] strap copper braid](/forums/iconimages/bolt-tech/exhaust-ground-wire-merged-3-7-strap-copper-braid_ltr.gif)
Is this a good exhaust ground *pic*
