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DIY: 1st Generation G35 Betty's Garage grounding wire set installation

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Old 03-06-2009, 07:32 AM
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DIY: 1st Generation G35 Betty's Garage grounding wire set installation

Here's how to install the wire set.

DISCLAIMER: This set of wires is purchased and used solely at your own risk. I will not be held responsible or liable for any harm or damage that comes to your car or to you. What you are installing is a set of wires, nothing more. Take every reasonable precaution for safety when installing. Use good judgment and common sense. Installation of the Betty's Garage Grounding Wires do not necessarily void your factory warranty on electrical components in your car unless it can be proven that they are the cause of the malfunction. With proper installation, they will not be.

Tools needed:
  • 10 mm socket
  • 8 mm socket
  • ratchet
  • short extension or a deep 10 mm socket
  • 5 mm Allen wrench

All bolts shown are 10 mm except on top of throttle body which is 8 mm.

1. DISCONNECT THE NEGATIVE BATTERY CABLE! You should always disconnect the negative battery cable before doing anything electrical on your car. Always!



2 Remove the engine cover.


3. The longest 8 AWG wire is to ground the throttle body directly to the battery. Connect the end with the spade terminal to the throttle body by loosening the small 8 mm stainless steel nut on top of the throttle body and placing the spade terminal underneath. Tighten the nut back down.
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4. Run the cable behind the engine and through the wire grommet into the battery compartment. Don't connect to the negative battery terminal yet.
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5. Run the second longest cable from the negative battery terminal through the battery compartment wiring grommet to the point shown in the second photo below to ground the battery to the chassis.
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See that tiny black wire grounded here? That is what is grounding your headlights! Pathetic. Remove the bolt and place the end of the grounding wire on top of the black wire that's already there. As you can see from the next photo, one end of another wire will go here as well. Go ahead and bolt the second longest and one end of either one of the shorter wires here.
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6. Attach the other end of the shorter wire connected to the chassis to the bolt shown here on the front of the passenger side of the engine.
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7. Attach one end of the final short wire to the corresponding bolt on the driver side of the front of the engine shown here. Route the wire underneath the intake tubing and bolt the other end to the bolt show on the driver side chassis.
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Alternately, you may choose to route the wires into the battery compartment by poking or cutting a small hole through this existing wire grommet as there is more room for them here than through the other one.
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8. Attach both wires to the negative battery terminal.
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13. Voila! You are done. Enjoy.

You will need to reset your windows since your battery has been disconnected. To perform a window reset, start your car then hold down the driver side window button until the window goes all the way down and then continue for another 20 seconds. Do the same when rolling it up. Repeat on the passenger side window. You'll may also need to reset your radio station presets.



Huge thanks go out to NaiveRapture on panoramic-3d.ru for the installation photos.
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PlastiDippinG (03-18-2013)
Old 04-11-2009, 07:42 AM
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Thumbs up

Seriously... Thanks for these insturctions!!!
Old 07-23-2009, 09:29 AM
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Extremely useful! Thanks a lot!
Old 11-22-2009, 10:38 PM
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Thanks for the pics! So helpful

Following these lead to very easy and successful install. Making a hole in that rubber grommet is rather difficult because that rubber is quite thick (alternate highlighted green spot). Overall, can easily tell the car shifts smoother and quicker with a bit more thrust at the completion of each shift.
Old 01-06-2010, 01:06 AM
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I followed these instructions during my install, they helped considerably! Great value, and I love the shifting speed, smoothness, and the louder Bose system!
Old 01-24-2010, 02:13 AM
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On top of grounding those locations, id also ground the two underneath the engine cover just to the right side of the VTC cover/intake timing sensor. Those 2 grounds there, which are side by side are the main grounds for the A/T assembly.

On my 05 G35X i noticed the shifts were laggy, and occasionaly the 2-3 shift was a little hard, instantly upon grounding the above mentioned, the shifts are definately quicker and smoother. Definately surprised, usually grounding kits dont do much for performance.

Also i didnt ground to the battery, just grounded to the body, make sure your not using a stainless steel bolt to ground it.
Old 01-24-2010, 02:26 AM
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Quote:
Originally Posted by jt2ma71 View Post
On top of grounding those locations, id also ground the two underneath the engine cover just to the right side of the VTC cover/intake timing sensor. Those 2 grounds there, which are side by side are the main grounds for the A/T assembly.

On my 05 G35X i noticed the shifts were laggy, and occasionaly the 2-3 shift was a little hard, instantly upon grounding the above mentioned, the shifts are definately quicker and smoother. Definately surprised, usually grounding kits dont do much for performance.

Also i didnt ground to the battery, just grounded to the body, make sure your not using a stainless steel bolt to ground it.

your shift from 2-3 aren't hard any more? It annoys me If this fixes it then hmm.
Old 01-24-2010, 04:07 AM
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Didnt notice them after. I say untill i give her a few days. I noticed if i took off briskly in first then let off when it shifted into 2nd, the 2-3 shift was kinda abrupt and you felt it. Tried to replicate it tonight, didnt notice it so maybe its good. All i can say is in my experience, nissan likes to use speaker wire to ground important things. Pull the dash off a versa and you'll see like 30 grounds going to one tiny bolt.

Grounding kit can never hurt, unless you try ground the positive battery cable lol. I only grounded the A/T assembly wires because thats the only thing id really noticed. If your curious, on the 05 G35 FSM, go to section PG (power supply, ground, circuit elements), that will show you all the important spots to ground. on page 37 it wil show you the 2 grounds for the AT assembly. Id probably ground the M72 ground. Ill post up which one it is when i find it. Havent had time to search the FSM
Old 02-05-2012, 04:11 AM
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Just out of curiosity what does adding these extra ground wires do for the car's performce?
Old 02-21-2013, 03:07 AM
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The majority of the claims are not true "performance" gains as in horsepower. The most common thing people say they notice is quicker shifting when using Triptronic (manual) mode on an automatic transmission.
Old 04-23-2013, 06:09 PM
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Is there supposed to be a ground for the exhaust too?
Old 09-09-2013, 02:16 PM
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Originally Posted by teahead View Post
Is there supposed to be a ground for the exhaust too?
Stock exhaust had a ground bolted to it so I would assume so
Old 08-15-2014, 06:34 AM
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Whats the purpose of grounding kit?
Old 03-05-2015, 12:10 AM
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These still available?
Old 05-03-2016, 08:59 PM
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Hey, steps 9-12 are missing, can you re upload ? Or just show where they go on this picture I have attached.

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