[Es2] ABY wireing for URQ

[desmond auld]

Thanks all for your feed back on the Aby to URQ wiring and conversion.  The 
www.s2forum web site has some very good diagrams for the aby/adu engine side 
loom and ecu.  I am relatively happy with those diagrams and hopefully that 
side should go well.

What I plan on doing is to get everything connected and mocked up on the 
floor and get the engine running there.  Then I can check with vag com that 
all sensors are ok and I have no fault codes bugs.  This is the way I got my 
tdi engine running in my A2 golf.  The tdi has lots more wires than the ABY 
as it has a drive by wire throttle, electronic fuel pump etc, etc, so wiring 
doesn’t scare me.  And im also an electronic engineer.


The only problems I can see is on the 84 WR side.  As it’s an 84, then it is 
even worse than other URQ’s as it is more of a miss match or wires, and 
looms etc.  I haven’t looked much at the URQ wiring yet, but on first 
inspection it isn’t great.  There are wires spliced into the top side of the 
fuse box where the fuses are.  The fuel pump relay is bypassed somehow, as 
the pump runs as long as the ignition is on.  I notice the wastage has been 
adjusted…   Then the stupid digital dash has gone on the blink.

So I need more info on the UR wiring.  The vin no of the car is 
wauzzz852ea901061. Can anyone tell me if this is a early 84 loom car or 
what?  What are the best books to get for this car?  I have Haynes manuals 
for audi 100-200 and 80-90 coupe.  These don’t cover much.  Steve, the red 
Bentley manual for the US 4000(80), CGT, that you mention, is it readily 
available and if so where from?  How can I get a copy of the factory 
diagrams even if they are not completely correct?

Ok thanks to all involved for the help so far. Des.

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