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'66 Westy with 1.6d and T25 Bits
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trev
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PostPosted: Fri Aug 19, 2016 9:34 am    Post subject: Reply with quote

actually, on the mTDI thing, how is the VNT actuated if you turf out the loom and go with the mechanical pump? Do you also have to switch in a wastegate turbo?
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splitbusvanatic
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PostPosted: Fri Aug 19, 2016 1:59 pm    Post subject: Reply with quote

I think that's how it's done Trev alright.
Good thread on it here.
http://forum.club8090.co.uk/viewtopic.php?f=12&t=146773&sid=d4ecb1f73498ec9b99d8725a27f25430
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splitbusvanatic
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PostPosted: Fri Aug 19, 2016 2:01 pm    Post subject: Reply with quote

Yeah I think you're right.
The electronic wizardry might be a help rather than a hindarence with all the diagnostic capability.

I've the COMPLETE loom still attached. I'll post a pic later.
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trev
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PostPosted: Fri Aug 19, 2016 3:37 pm    Post subject: Reply with quote

wow, the whole loom!! You can seriously simplify it.

this is all that's left on mine and that's with the throttle potentiometer in the engine bay too.

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splitbusvanatic
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PostPosted: Fri Aug 19, 2016 3:47 pm    Post subject: Reply with quote

That's neat.
Heres mission control on mine


And the FULL Passat loom.
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trev
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PostPosted: Fri Aug 19, 2016 4:23 pm    Post subject: Reply with quote

do you have a wiring diagram for the Passat it came from Dan? If you don't I can get it for you from Autodata. Once you have it and you've figured out how to read it, you'll see that a lot of stuff can be trimmed away and you'll be left with only a few lives and a few earths needed to make the loom "standalone". Then a few outputs to the temp gauge etc and that's it. I use the oil pressure light and alternator wiring from the van and I completely turfed out the glow plug system from the loom. It's not needed, the TDIs start really easily.

have you had the ECU de-immobilised? That'll help to simplify the loom. And stripping the stiff rubber trunking off the Passat loom (big job!!) will make it easier to wrap the thinned-down loom up and hide it somewhere in the van.
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splitbusvanatic
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PostPosted: Fri Aug 19, 2016 5:45 pm    Post subject: Reply with quote

No Trev. The huge thick rubberIsed loom is still intact.
I'm actually tempted to keep the immobiliser.
If you have a wiring diagram. That be great though.
Cheers
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trev
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PostPosted: Fri Aug 19, 2016 6:17 pm    Post subject: Reply with quote

what year was the Passat? AFN right? I'll get the diagram as soon as I know.

why keep the immobiliser? As a security measure? Are you going to use the Passat ignition barrel up in the cabin? I think removing it will save you literally DOZENS of wires and if you need an additional security system, fit a hidden kill switch somewhere. You can cut voltage to the ECU or the solenoid on the pump or your choice of other wires that would immobilise the van.
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splitbusvanatic
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PostPosted: Fri Aug 19, 2016 6:19 pm    Post subject: Reply with quote

Yup. 1997. Afn.
What kinda dough to get an Ecu de-immobilised ?
or is it a simple matter of de-soldering something within Ecu.
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trev
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PostPosted: Fri Aug 19, 2016 6:42 pm    Post subject: Reply with quote

de-immobilizing the ECU is a specialist exercise as far as I can see, the dude doing it needs special software, leads etc to link his laptop into a particular chip on the board and make some changes to the program on the chip. That's my tin-pot understanding of it anyway. I don't know what it would cost, mine was done as payment for some parts I sold to Padraic at CustomVolks in KK. There's probably some whizz-kid up your side of the country doing it. Ask around locally or put the question on autostadt.ie

I'll get that diagram Happy
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trev
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PostPosted: Fri Aug 19, 2016 7:08 pm    Post subject: Reply with quote

splitbusvanatic wrote:
Yup. 1997. Afn.


is yours early or late? I.e. is the MAP sensor inside the ECU or on the boost pipe?

**EDIT**

I see the MAP sensor on the pipe in the photo above. I have the wiring diagram saved as a PDF, PM me your email and I'll send it to you that way.
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splitbusvanatic
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PostPosted: Fri Aug 19, 2016 8:46 pm    Post subject: Reply with quote

PM'd you there.
Cheers Trev
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