Ground Locations

[Nytron]

I ordered a new IAC/ISC valve from rockauto, my stock one looks like it shorted out near some of the pins. Before I put in the IAC, I want to double check that my grounds are okay so the same thing doesn't happen to the new part. I also have the issue where my lights go dim at idle.

I looked in the service manual for grounding locations, but the section where they show the locations does not include the ground strap from the plenum to the firewall nor the ground strap that is on the radiator bracket. Can anyone tell me where all the ground straps are?

[GRN3500GT]

Two 8” wires (one for chassis to terminal and one for alternator to chassis)
Three 10” wires (one for throttle body to terminal, one for head to head, and one for chassis to intake plenum)
One 18” wire (for rear head to terminal)
One 20” wire (for transmission to terminal, manual transmission will have 27” wire)

this I got from a ground wire kit guide from the other site courtesy and thanks to MK 94 3000GT hope it helps

[Nytron]

Two 8” wires (one for chassis to terminal and one for alternator to chassis)
Three 10” wires (one for throttle body to terminal, one for head to head, and one for chassis to intake plenum)
One 18” wire (for rear head to terminal)
One 20” wire (for transmission to terminal, manual transmission will have 27” wire)

this I got from a ground wire kit guide from the other site courtesy and thanks to MK 94 3000GT hope it helps

Yeah, I have the .doc file for that ground wire kit. Are all those the stock wire locations?

For example, one of the steps:
Step 7: remove the forward driver’s side alternator mount nut and install one end of the remaining 8” wire. Remove the nearest radiator mount bracket bolt and install the other end of the 8” wire. Reinstall the nut and bolt.


Looking at my car now there is no stock wire in this location near the radiator mount bracket, so in this case the wire kit isn't replacing a wire but adding a new one? Either that, or I'm missing one wire right there.

[x2xtreme360]

The ground wire kit ADDS wires. It doesn't replace stock ones.

[MR2]

yeahh stock does not have anywhere near that number of wires...

having said that I'd increase the number of earths for suuure.

from what I've seen there is one from the throttle linkage to the firewall and that's about it on my car ;( the starter had an earth directly to one of it's bolts (straight from the battery) since moving battery to the boot I've not adjusted that...been meaning to put another earth from engine to chassis but never gotten around to it.

[Nytron]

Yeah, I'd love to add additional grounds, but need to know where all the stock ground locations are first so I can fix those.

[x2xtreme360]

Are you referring to the battery grounds? There's one on the body by the solenoids and one to the engine down by the starter. What other grounds are you looking for?

[Nytron]

Are you referring to the battery grounds? There's one on the body by the solenoids and one to the engine down by the starter. What other grounds are you looking for?

Yes, any of the stock ground wire/strap locations that would affect voltage, such as the dimming lights at idle issue.

[Ninja Performance]

The stock grounds are sufficient if they are still good wires and the connections are clean.
Stock, the main ones are battery to firewall right at the battery location, battery to the trans/block via the ground wire that runs with the starter positive cable, and firewall to throttle cable mount on plenum via the flat braided cable.

-Chris

[Nytron]

The stock grounds are sufficient if they are still good wires and the connections are clean.
Stock, the main ones are battery to firewall right at the battery location, battery to the trans/block via the ground wire that runs with the starter positive cable, and firewall to throttle cable mount on plenum via the flat braided cable.

-Chris

Thanks, just what I was looking for. For some reason I thought there'd be more locations.

Thanks to everyone that replied.