Coilpack Harness amk replacement

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Tom93

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Hey all, yes i know ANOTHER coilpack wiring loom thread, but all the threads i can find only go so far, yes buy the ecs harness and splice it in...

So thats what ive bought, but before i get into it over the weekend i wanted to know if the replacement is the same as the original? As in can i follow pin 1 from the original and pin 1 from the replacment back to the same position then snip and solder? Or is it complicated and i have to actually do some working out? I know how to solder and im pretty good with automotive electrics just trying to get more info on what im getting into before i actually get there :/

Thanks all :)
 
The colour coding will be different on the coil pack wires but pin assignment is the same... as you said, follow back job done... power and earth should be the same... the power wires will be doubled up from memory... just find a sensible place to cut and splice

<tuffty/>
 
I plan on splicing around the side of the head, where theres a reasonably straight bit of wire. Will try and bring it as close to the front of the car as i can. Hopefully the wiring there will be ok. Thanks for that bud ^^
 


Coilpack wires branch off to the left, can i just lop off the 2 wires that branch right for those sensors? Well seal off the ends of course.

Then cut the loom at the end of the coilpack strands, then its ready for the car? Yay or could be a better way to do it?
 
Ok so, removed all the tape and cut the wites down to size, then it came over cloudy and cold so im not getting this done today :( but can anyone identify what the wires do? From what i can work out
Brown = power
Brown/yellow = ground
4 smaller wires = ecu signal wires
Then theres a purple and black on every plug im not sure it does? They join into a connector and only 2 come out the end of the loom, another earth that goes back to the ecu?

 
guys just looking on awsom gti for the replacement loom, any idea why it says not suitable for 225 versions?
 
I imagine the pins or wiring is somehow different, but the plugs are just what we need hence the splicing ;)
 
I just follow the wiring pin for pin then connect the powers up accordingly... it will be obvious when you start...

@rhinopower you can't just use this loom as its a generic one thats more a replacement for K03 setups than S3/K04 setups... arguably you 'could' run it back to the ECU but thats not without its potential issues and is a more scary proposition for most..

Splicing in is easier to do IMO and as long as you are systematic you can splice it in no probs...

Cut and splice one wire at a time...

<tuffty/>
 
Ah ok. I've got miles of wiring overbraid from some looms i have built before, i was entertaining the idea of doing the loom.
 
Done it, really easy actually. Gotta pop to halfords and get some tape, will properly update later once ive tidied it all up.
 
Guess i should give an update here, The splicing is dead simple, Heres a quick run down of how i done it, hopefully it will help someone else.

Disconnect harness and pull it out over the front of the car, cut off all the tape and remove all the conduit.

Now you can follow the wires from a certain pin all the way back to you're splicing point.

My car had 2 purple and black wires in the engine loom and 2 in the new loom, so i spliced those first, simply cut off, remember to slide your heat shrink over, strips the ends, make an X, twist them together, tin the iron, apply heat to the bottom of the joint, a bit of solder between the iron and wire to get it going then feed solder in from the top. Then let it cool and slide youre heat shrink over, job jobbed. That goes for all the wires you splice.

This is just for my car, others may differ... 51 Plate S3 8L AMK Engined.

2 purple and black wires spliced to 2 purple and black wires.
1 Brown wire spliced to 3 brown in the car loom, 1 larger 2 smaller.
Then theres obviously the earth that bolts to the cam cover.
Then you just have to trace the small signal wires, 1 on each coilpack plug, back to the loom and splice those in.

Couple bits to remember, try and get all the wires the same length, so pay attention when you splice the first wire, try and make it the same length as the original then that can be your base to copy for the rest of them. Also whilst you're making sure the wires are the same length dont cut them all in the same place, you want you're soldered joints to be staggered from eachother otherwise that part of the harness will be hugely thick and you wont fit the conduit over it.

And lastly a couple pictures to show why you might need to do this!









I counted a total of 22 breaks in the wires insulation in the harness i cut out, Safe to say it went straight in the bin, after of course i went for a test drive lol!
 
This is going to be a job im going to have to have a crack at soon, i noticed a few cracks in the insulation coming out the back of the plugs. i want to change my rocker cover soon (got a painted 1 + new gasket to replace the leaky one) so should imagine when removing all the coils it's going to crack a whole lot more.
 
I also need to do my rocker cover gasket, might do that when i fit TFSI coils and regap the plugs...
 
I have one of the above here on my bench, I plan to fit it with the tfsi coils, might put the heat shielding over it aswell...
 
audi upgrades
hi fitting my coil pack harness and on old loom i have 1 extra brown wire left and none on new loom.are the brown all earth and can i splice it together with another brown

are just seen at top of your post the answer to my question ;)
 
You were probably to eager cutting, all 3 probably originally all joined together in some form of plasticy crimp connector thing...
 
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