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Wide Band Installation Help

Missileman

By Missileman,
in Engines & Forced Induction

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Missileman Veteran

Missileman

Posted
Posted

Trying to install a wide band into my auto 32 gtst and have run out of ideas on where to run the cabling form the sensor to the drive unit which is inside the cabin. I don't really want to drill holes in the floor or firewall. There is a rubber boot underneath the shifter for the linkage to the transmission, but this location doesn't appear to be suitable as it could foul the linkage. The other option is from the engine bay through the same route as the engine harness to the computer, there seems to be another rubber boot/ seal there which is proving difficult to guide the cabling through.

Interested to hear how others have routed their cabling into the cabin?

Cheers Mike.

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GTSBoy Grand Master

GTSBoy

Posted
Posted

Pass it with the engine wiring. I use a coat hanger with the end bent back and wrapped in a little insulation tape (so it doesn't tear anything up too much) as a guide rod to poke through, then tape the wire(s) I need to drag through into the cabin onto the hanger and drag it in. I have used method that to pass through wiring for and air-fuel meter, a pyrometer, for the IC water spray, and so on.

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scotty nm35 Grand Master

scotty nm35

Posted
Posted

I ran a 20mm holesaw through the tunnel and installed a grommet. Otherwise the wiring was too short. The sensor needs to be down near the back of the box and mounted as close to vertically as possible.

89CAL Grand Master

89CAL

Posted
Posted

I Fed the harness up through the Shifter hole around the boot/boot holder. Just had to bend the steel boot holder a tiny bit so it didnt squash the harness. No issues at all

The shifter is only a rod into the gearbox, so theres no linkages etc around there, if you run it smart then theres no issues.

Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

i just close the wire on the door. run them for many years like this... works fine. i do this because back in the day i only had one wideband sensor and i would need to remove it from my own car and use it on other cars that i was tuning.

never once had an issue.

Missileman Veteran

Missileman

Posted
  • Author
Posted

Over at a mate of mine who is a retired panel beater/ spray painter, he suggested I look on the firewall for pre-existing hole that has been blanked off. As soon as he said it a light switched on upstairs and I immediately thought of the spot where the clutch goes through, will report back when I'm finished. :)

Missileman Veteran

Missileman

Posted
  • Author
Posted (edited)

Pass it with the engine wiring. I use a coat hanger with the end bent back and wrapped in a little insulation tape (so it doesn't tear anything up too much) as a guide rod to poke through, then tape the wire(s) I need to drag through into the cabin onto the hanger and drag it in. I have used method that to pass through wiring for and air-fuel meter, a pyrometer, for the IC water spray, and so on.

This was exactly what I tried after sussed out where the shifter goes through the transmission tunnel. I managed to get the coat hanger wire through the first rubber grommet, but it seemed to snag on another seal or piece of foam behind the firewall, it was getting late so I gave up and came in hear to post.

I ran a 20mm holesaw through the tunnel and installed a grommet. Otherwise the wiring was too short. The sensor needs to be down near the back of the box and mounted as close to vertically as possible.

I positioned the sensor about a meter back from the turbo and 200mm from the cat. Tech Edge suggests the sensor is positioned between 15 degrees from vertical and 10 degrees from horizontal...

http://wbo2.com/lsu/lsuinstal.pdf

Edited by Missileman
89CAL Grand Master

89CAL

Posted
Posted

If you take the shifter out and the boots off its easy to run up into the cab that way, then just put it all back in taking care not to crush the cable

But Where you have run it is fine, Shouldn't have an issue, just a bit longer distance for it to travel.

HR32GTS 4DOOR Community Regular

HR32GTS 4DOOR

Posted
Posted (edited)

Saw that, but it looked too small, the small plug end on the tech edge cable is about 18mm Ø

Run the actual sensor through the hole from the inside of the car, surely the sensor will fit through. MIne does.

If you want to use the same grommet just put a clean cut through the side of it fro the wires and when it goes back on the car it will close up nice.

Edited by HR32GTS 4DOOR
89CAL Grand Master

89CAL

Posted
Posted

Run the actual sensor through the hole from the inside of the car, surely the sensor will fit through. MIne does.

If you want to use the same grommet just put a clean cut through the side of it fro the wires and when it goes back on the car it will close up nice.

You know he has already run the wiring for the sensor right?

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