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xtrailing Profile
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X-TRAIL ENTHUSIAST
 


Date Registered: 02-2005
Location: Geelong, Victoria
TOTAL POSTS: 190
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Re: Poor vehicle earth/ground


Finished making & installing my own grounding kit on friday night. Had read the guff about better performance/idling etc in the threads & was sceptical, so being a sparky I had some 6B&S automotve cable lying around as well as some crimp lugs to suit. I have installed 4 extra earth points around the car as well as cleaning up existing earth points, especially the main chassis to battery one under the aircleaner. I scraped/sanded all chassis points back to bare metal for good contact & used star/lock washer under all bolts as well as between lugs & body as they bite into the metal.I added 1 lead from battery -'ve terminal to head above t/stat housing, another from same head point back to point on strut tower(passenger side)where a couple of existing loom earths connect,1 from alternator bracket to loom earth points on driver side inner guard & the last one from the top of the strut tower(drivers side) to the coil earth points on the engine. Took the car for a run down to bellbrae & back yesterday(90 k's or so up/down hills etc) & to my surprise the difference is noticable in the drivability of the vehicle, the roughness at idle when in gear has gone & has actually made the car more pleasant to drive. My advice to everybody is if you have to buy the kit($80 on ebay) do it, it was well worth the effort in my case!! The most important thing though is to make sure the chassis points have been scraped/sanded back to bare metal, I then used some grey zinc paint after the install to stop the points from rusting.Hope this is useful.

Cheers Phil

Jalal, you may want to post this in performance enhancers as well,not typing it again!!!

Thought I might add some photo's to show how easy it is!!

Image Image Image
Image Image
Note! No photo's of chassis points

Last edited by xtrailing, 8/Jan/2006, 7:35 am
18/Dec/2005, 7:38 am Link to this post Send Email PM   Send Private Message
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29088
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Re: Poor vehicle earth/ground


Thanks for the heads up Phil.

The power of copy and paste is something that I'll be using in this case to transfer this info. to the performance thread LOL emoticon

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18/Dec/2005, 9:09 am Link to this post Send Private Message MSN Blog
 
basshead Profile
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Date Registered: 02-2004
Location: Panania, Sydney
TOTAL POSTS: 2852
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Re: Poor vehicle earth/ground


quote:

Eggins wrote:

I'm going to ask them to reset the computer at the next service just to make sure we're not dragging around any learnt bad behaviour.




I believe you can do this yourself by simply disconnecting the battery overnight. I've never tried it, but I've heard it so many times on other forums that it's worth a try - no harm could be done, anyway.

Don't forget your radio PIN code though emoticon



---
Rich. X-013(c)
'04 S2 ST Auto. Nudge_roofracks_tow_tints_Lightforce_GME_YokoGeoA/T-S_TBS_bashplate_50mm-spacer-lift
Click here to see >300MB of photos and videos All For His Glory.
20/Dec/2005, 10:53 pm Link to this post Send Email PM   Send Private Message MSN Yahoo Blog
 
xtrailing Profile
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Date Registered: 02-2005
Location: Geelong, Victoria
TOTAL POSTS: 190
Reply | QUOTE
Re: Poor vehicle earth/ground


Found 2 more earthing points while tinkering the other day, 1 is from auto tranny to chassis on passenger side(need to lay under car & pull splash guard off). The other is located on the inner guard beside the aircleaner box. It is another loom earth, very hard to pick, as I had the air intake tube off I noticed it next to the last joint before the airbox. Took both these points off & ground them back to bare metal with the dremel,reconnected & painted to stop rusting.

Cheers Phil
16/Jan/2006, 7:20 am Link to this post Send Email PM   Send Private Message
 
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Date Registered: 08-2004
Location: Brisbane
TOTAL POSTS: 184
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Re: Poor vehicle earth/ground


I also found the eath point behind the air filter box like XTRAILING. I thought while I'm at it, I'll go all out and fit some proper grounding wires - regardless of what I've already said in this topic!

I got a "NRG" eathing kit from the local Autobahn for $99.00 - a bit dearer than ebay but I didn't want to wait, and I figured it'd take me hours to make up my own leads.
The kit came with a new clamp for the battery negative terminal and a contraption that all the earth leads connect to. There were several leads of varying lengths. Instructions were very minimal, but that seemed to be OK. Also there was a bunch of nuts and bolts and a few little cable ties.

I cut the round part off the end of the original battery lead, leaving basically a flat tag with a hole in it. This, and the above mentioned contraption bolted to the new battery terminal clamp.

Image

Then I ran several of the new earth leads to the head, timing cover, alternator bracket, strut towers and the earthing point down beside the battery.

Image

Image

And last but not least, the lead that goes to the passengers side strut tower, also goes on through the firewall (unused grommet below the main wiring harness + silastic) and onto a bracket that supports the ECU and other electronics behind the glove box.

Image

Image

I've been studying what some others have said in other forums, like QR25DE.net but they didn't seem to be able to decide what was the best way to hook up the earthing leads. A lot had used a common point on the engine, but I figure you can't possibly go wrong if all leads go back to the battery negative.

Here's one of the links I found:
Found on QR25DE.net

Shawn


---
Shawn and Belinda Eggins
2003 STR, K&N, Strut brace, Ground wires, Dunlop LM702's, Tint, Mud flaps, Tow, Nudge, Spots, Mats, Rear scuff plate
http://eggins.synthasite.com/
31/Jan/2006, 11:38 pm Link to this post Send Email PM   Send Private Message
 
NPC73 Profile
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Date Registered: 12-2004
Location: Mount Isa, QLD
TOTAL POSTS: 1247
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Re: Poor vehicle earth/ground


Nice and informative post you have there Shawn, and the pictures are excellent.

Now for the big question for you: Have you noticed any difference in your exy?

I'm sure you'll want to test this mod over the next week or so, please keep us informed.

---
Noel...
Member ID: X-072 (Retired Administrator)
2003 X-trail, TI, Manual, (Series 1) - (with the works)
2013 Toyota Prado, Manual, Turbo Diesel - (Snorkel-K&N-Full Exhaust, 20" Low Profiles, Chrome Bullbar, HID Spots, + All the Bling!)
31/Jan/2006, 11:49 pm Link to this post Send Email PM   Send Private Message MSN Blog
 
Eggins Profile
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Date Registered: 08-2004
Location: Brisbane
TOTAL POSTS: 184
Reply | QUOTE
Re: Poor vehicle earth/ground


Check my other epic post back a bit in this same topic. I found it improved the car when I fixed the standard earthing. I just added all this as insurance (and it was blue, a bit like chrome for some!)

Shawn

Last edited by Eggins, 1/Feb/2006, 1:36 am


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Shawn and Belinda Eggins
2003 STR, K&N, Strut brace, Ground wires, Dunlop LM702's, Tint, Mud flaps, Tow, Nudge, Spots, Mats, Rear scuff plate
http://eggins.synthasite.com/
1/Feb/2006, 1:34 am Link to this post Send Email PM   Send Private Message
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29088
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Re: Poor vehicle earth/ground


Well done Shawn, excellent post!

Now I have to look for chrome wires LOL

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1/Feb/2006, 8:22 am Link to this post Send Private Message MSN Blog
 
BRETT72 Profile
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Date Registered: 10-2005
Location: Orange. NSW.
TOTAL POSTS: 1999
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Re: Poor vehicle earth/ground


 After much research on this and other forums, I bit the bullet and wired up an upgraded grounding kit. Yeah, there are over 20 grounds in the exee, but I decided on only seven.
 Regarding these placements, I ran an ohm metre (used to measure cable resistance) across various points to see where the most variation in resistance when turned on, compared to off. Of note: the actual strut tower bolts are not earthed (no continuity back to the battery -ve) ???.

 I used 4metres of 4 gauge hi-temp speaker ground cable, with O ring connectors. Total price being $50.

 Image

 I ran the grounding kit in a loop, which appears neater (to me anyway).

 My loop ran: -ve battery terminal to right hand side light earth, then through the firewall to the ECU earth behind the glovebox.
  Also, -ve battery terminal to throttle body, then to drivers side strut earth, then to left hand side light earth, then to the alternator and finally to the left side of the engine where the main earths are found.

Image Image Image Image Image Image Image

 As for benefits, not sure but it appears to reverse down my driveway better, throttle appears a bit more responsive and the lights are heaps brighter. Not sure if this is just my imagination or not.

 What's next....bring on the CAI.

---
BRETT72 - X235

21/Feb/2006, 3:41 pm Link to this post Send Email PM   Send Private Message MSN
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29088
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Re: Poor vehicle earth/ground


Wow Brett, you're really catching-up mate LOL emoticon

Well done and let the mods continue!

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21/Feb/2006, 5:28 pm Link to this post Send Private Message MSN Blog
 


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