[Mk2] [Turbo] Wire tuck and potential for removing unwanted wiring??

[jimGTS]

I'm in the middle of doing a wire tuck with a great tuck tip provided by Karl Withers.

Anyways my harness and fuse box is out, I wondered what I could strip and remove??

I currently don't use my aerial so thought of removing the plug and wiring for this which is a good 10+ foot.

I have a grey plug which I've no idea what it's used for and hasn't been plugged into anything
???



This plug goes through the chassis by the expansion tank cap, any ideas what it is/does??



What is this part?? Looks useless?? Sits next to the coil/ignitor




Current state of affairs

[mr2magic]

That two pin connector is for the left rear abs sensor. The other part is a noise filter.

[jimGTS]

That two pin connector is for the left rear abs sensor. The other part is a noise filter.

Thanks, that connector makes sense given where it comes out.

What does this noise filter actually do??


Any ideas on the other plug (first in picture)??
I should have mentioned, this harness is potentially an Na harness? (Car was originally an Na). Could be Na related??


I have the canister and a/c idle up plugs on the other harness, hopefully I can strip these out without removing it.

[mr2magic]

The filter acts as a choke and reduces the effects of the high voltage ignition on the remaining wiring.

The other connector looks to me öike the ac idle up, but does it fit?

[jimGTS]

oops double post

[jimGTS]

It's not the idle up. As said, that's on the other harness (that goes over the injectors)

You can actually see the idle up and canister plugs in the 2nd picture
(Idle up is black plug with red wire)

[mr2magic]

Hmmmm i could gave sworn..

[jimGTS]

heres an old picture before i removed the idle up valve (and a bunch of other things), you can see the plug and red wire

[mr2magic]

Do you know what rev the na was? There's not really much around there that could be relevant...maybe for the post 93 evap system?

[jimGTS]

yeh is a 97 rev4.

it doesnt reach very far to be fair.



like i say it not plugged into anything anyway, but wondered what it was.
probably more hassle than its worth to remove really.

[mr2magic]

Would it reach up to the airbox?? Maybe for the iat sensor...

[jimGTS]

Would it reach up to the airbox?? Maybe for the iat sensor...

i do already have a plug for that, you can see it by the intake in my last picture.


perhaps the NA wiring for it is in a different position, hence why not used. who knows.

[jimGTS]

Followed the wires to here if this is any help? (Circled in RED)





Frustrating work, but finally got the harness back in last night.
Goes over the inner arch, back into the bay via the petrol cap grommet and back through the original cabin grommet hole.

[bobhatton]

What will it mount to now, and what about the engine loom, how will you get that to the box?
Going to do that with my race car so nice to see photos of how it all goes.

[jimGTS]

Here it is into the bay again





I'll figure a way to mount it, likely next to the ecu.
Haven't decided if it'll mount over or under the carpet yet.
The injector resistor pack I still may mount in the bay but low down and out the way.
There is enough to hook the engine harness back on, I believe!!

Thing that's awesome about this is no rewiring.

I believe all I'll need is an extended coil plug, and potentially drill a hole or 2 into the firewall to bring the engine and diag port harness in.
Which I think I can make out of an old no1 lead.

Like I say I pinched this idea from a chap called Karl on the Facebook mr2oc.
His had enough to reach the engine harness in this position.

[mr2magic]

Can you not route the wiring solely through the rear quarter panel and into the car?

[jimGTS]

unfortunately not.

the area behind the rear speakers, its blocked there, no passage back into the cabin.


more i take out, more there is to clean 20 years of dust/grime!


im sure if you fully stripped the shell, you could figure a way of doing it, as well as having to actually rewire it all, but this way is less stress and hassle.

[jimGTS]

you can see the intake hole takes up a huge amount of space there, so youd have to work out how to get around that, plus cut "somewhere" to get back into the cabin.


least going back into the same hole with the same length of the harness, means all the wiring cabin side hooks straight back up, so hassles.


plus if you ask me, the small amount back into the cabin is pretty hidden, especially when the filter/intake piping goes back in.

[madbasshunter]

I run my speaker wires from the boot to the cabin

Having drilled a couple of large holes under the quarter window behind where the rear speakers were
There are already holes there you can use

[jimGTS]

yeh there is a small hole drivers side. for the boot release i think.


the harness is not really open to much bending at all, certainly no sharp turns, so being able to work in that area will be tricky.

you can get away with it for speaker wiring. but for it to work for me, it had to be passengers side, and theres nothing i could feel there, well not big enough for a harness, and no way enough room to be able to cut a 50mm hole in it.