ENGINE WIRING DETAILS

For a narrative with lots and lots of pics showing the info from these tables in action see my Wiring Harness and DTA Integration Page.  (not quite done just this second)

This is a detailed list of how I modified the wiring harness.  It includes all of the AWP wiring harness components (engine harness only), as well as additional components being added, DTA wiring, and other wiring components.  Anything highlighted in grey has been removed or is not being used in the case of the DTA wiring.  In the notes section I have included the reason why it was removed.  This is an all inclusive list in terms of the engine wiring, and should be a final draft for the entire engine swap.  I have included the coloring of the wires below each component in the AWP harness section so that someone swapping in the AWP can benefit from not having to spend hours going through the wiring diagrams.  It goes without saying that the colors are VW AWP specific (as opposed to Audi AWP).    According to the Bentley, the colors of wire apply to the VW AWP engine used from 5/02 on.


AWP WIRING HARNESS COMPONENTS

AWP WIRING  COMPONENT
(color of wires
in AWP harness)
 VW
COMPONENT
DESIGNATION
 NOTES
 PIN
NUMBER
ON DTA
 CONTACT
FUNCTION
 COMPONENT CONNECTED
Ignition Coil 1 with Power Output Stage
brown/yellow, brown. black/lilac, lilac/black
 N70
 Coil outputs on DTA are numbered in firing order not cylinder order 1
 Coil 1 Coil 1
Ignition Coil 2 with Power Output Stage
brown/yellow, brown. black/lilac, black/yellow
 N127
2
 Coil 4 Coil 2
Ignition Coil 3 with Power Output Stage
brown/yellow, brown. black/lilac, black/brown
 N291
20
 Coil 2
 Coil 3
Ignition Coil 4 with Power Output Stage
brown/yellow, brown. black/lilac, black/lilac
 N292
38
 Coil 3 Coil 4
Charge Air Pressure Sensor
lilac/green, lilac/grey, brown/blue
 G31
 Using separate MAP sensor instead


Camshaft Position (CMP) Sensor
lilac/yellow, lilac/green, brown/blue
 G40
27
 Cam Sensor Signal to Hall Sensor on Cam Wheel with one tooth
Wastegate Bypass Regulator Valve
green/brown, yellow/black
 N75
21
 Turbo Pressure Valve Manifold Pressure Valve
Valve -1- for camshaft adjustment
green/white, yellow/black
 N205
 Variable intake valve timing
 42
 Cam Phase Valve/
Aux Out 4 		Cam Phase Valve
Recirculating valve for turbocharger
grey/green, yellow/black
 N249
 Using a mechanical version of this instead


Engine Coolant Temperature (ECT) Sensor
brown/white, lilac
 G2
 Sensor for Coolant Temp Gauge


Engine Coolant Temperature (ECT) Sensor
brown/blue, grey/yellow
 G62
 Sensor for DTA
 26 Coolant Temp Coolant Temp Sensor
Intake Air Temperature (IAT) Sensor
brown/blue, blue/green
 G42
45
 Air Temp Air Temp Sensor
Throttle drive (power accelerator actuation)
lilac/black, white
 G186
 Part of drive by wire setup not being used
Went with cable actuated throttle instead


Angle sensor -1- for throttle drive (power accelerator actuation)
white/grey, blue/grey
 G187
 Part of drive by wire setup not being used


Angle sensor -2- for throttle drive (power accelerator actuation)
lilac/white, blue/white
 G188
 Part of drive by wire setup not being used


Engine Speed (RPM) Sensor
black, brown, white
 G28
8
 Crank Sensor Signal to Magnetic Sensor on Crank Toothed wheel with missing teeth
Knock Sensor (KS) 1
grey, blue   
G61
 DTA doesn't have knock sensing capabilities


Knock Sensor (KS) 2
green (according to Bentley: grey), yellow 
G66



Cylinder 1 Fuel Injector
red/lilac, lilac
 N30
 Injector outputs on DTA are numbered in firing order not cylinder order 37
 Injector 1 Injector 1
Cylinder 2 Fuel Injector
red/lilac, lilac/green
 N31
54
 Injector 4 Injector 2
Cylinder 3 Fuel Injector
red/lilac, lilac/red
 N32
18
 Injector 2 Injector 3
Cylinder 4 Fuel Injector
red/lilac, lilac/blue
 N33
36 Injector 3 Injector 4
Evaporative Emission (EVAP) Canister Purge Regulator Valve
blue/yellow, lilac/red
 N80
 Using only '79 emissions system


Oil Pressure Switch
green/blue
 F1 Using '79 sensor and wiring for idiot light and wiring in a new sensor for a pressure gauge


Speedometer Vehicle Speed Sensor (VSS)
black/white, white/blue, brown
 G22
 Using '79 setup



I have labeled the above mentioned items in the pic below:



COMPONENTS BEING ADDED TO WIRING

ADDITIONAL WIRING COMPONENT
 NOTES
 PIN
NUMBER
ON DTA		 CONTACT
FUNCTION		 COMPONENT CONNECTED
Manifold Absolute Pressure (MAP) Sensor
30
 MAP
 Signal for MAP Sensor
Throttle Position Sensor (TPS)
48
 Throttle Wiper Signal for TPS
Idle Speed Valve
 Pulse Width Modulation Valve 4
 Idle Valve Idle Speed Valve
Wide Band O2 Sensor
44
 Analogue Input 3 Wide band O2 Sensor


OTHER WIRING COMPONENTS

OTHER WIRING COMPONENT
 NOTES
Alternator Using the AWP connector from alternator to starter.  Excitor wire gets wired into '79 wiring
Starter Quick connect terminal from AWP harness spliced into '79 wiring
Oil Pressure Sensor (idiot light) '79 sensor and wiring
Oil Pressure Sensor (pressure gauge and sensor) New sensor and wiring.  T-Connector will be used to allow for all 3 sensors
Oil Temp Gauge New sensor and wiring
Volt Meter Current wiring setup


The DTA Wiring table includes all of the pins available on the DTA.  Again, anything in grey is not being used.  I have included details on power supply and grounds as well.  Any mention of a relay board is in reference to the relay board that is going to be moving into my rain tray area shortly.

DTA WIRING

PIN
NUMBER
ON DTA 		CONTACT
FUNCTION 		COMPONENT CONNECTED NOTES
AWP CODE
RELAY PIN /
WIRE INFO
1
 Coil 1
 Coil 1
N70
lilac/black
2
 Coil 4
 Coil 2
N127
black/yellow
3
 Coil 6
 Coil 6


4
 Idle Valve
 Idle Speed Valve Pulse Width Modulation Valve

25, grey
5
 Aux Out 2
 Relay or LED


6
 Shift Light
 Shift Light LED


7
 Analogue Input 2



8
 Crank Sensor
 Signal to Magnetic Sensor on Crank Toothed wheel with missing teeth
G28
white G28
9
 Right Driven Wheel
 Signal to Hall Sensor on Toothed Wheel
 Traction control, right driven wheel
10
 5 VOLTS
 Toothed Wheels

lilac/green G40
11
 Undriven Wheel (must)
 Signal to Hall Sensor on Toothed Wheel
 Traction control
12
 Lambda Signal
 Lambda


13
 ALS On/Off
alt Lambda On/Off
 Toggle Switch
 Turbo Anti Lag
14
 Traction Wet/Dry
 Toggle Switch
 Traction control
15
 POWER GROUND
2 wires wired through relay board then big 'ol wire from board to engine
7, brown
8, brown
16
 Injector 8
 Injector 8


17
 Injector 5
 Injector 5


18
 Injector 2
 Injector 3
N32
lilac/red
19
 12 VOLTS
 12 Volt Supply
 Voltage for driving DTA CPU, internal voltage supplies for sensors

28, red/black
20
 Coil 2
 Coil 3
N291
black/brown
21
 Turbo Pressure Valve
 Manifold Pressure Valve
N75
27, purple
22
 Coil 8 or Aux 5
 Coil 8


23
 Turbo A Lag
 Turbo ALS Valve


24
 Tach
 Tachometer
 '79 wiring

C19 on fuse panel, blue
25
 Analogue Input 1



26
 Coolant Temp
 Coolant Temp Sensor
G62
21, yellow
27
 Cam Sensor
 Signal to Hall Sensor on Cam Wheel with one tooth
G40
lilac/yellow G40
28
 5 VOLTS
 MAP Sensor, TPS
 Run through relay board

26, pink
29
 Left Driven Wheel
 Signal to Hall Sensor on Toothed Wheel
 Traction control, left driven wheel
30
 MAP
 Signal for MAP Sensor

36, orange
31
 Launch Button
 Momentary Switch


32
 Traction On/Off
 Toggle Switch


33
 Shift Cut
 Micro Switch


34
 POWER GROUND
2 wires wired through relay board then big 'ol wire from board to engine
4, brown
5, brown
35
 Injector 6
 Injector 6


36
 Injector 3
 Injector 4
N33
lilac/blue
37
 Injector 1
 Injector 1
N30
lilac
38 Coil 3
 Coil 4
N292
black/lilac
39
 Coil 5
 Coil 5


40
 Coil 7
 Coil 7


41
 Fuel Pump Relay
 Fuel Pump Relay
 Connecting fuel pump directly to DTA

37, red/yellow;
30, red/green
42
 Cam Phase Valve/
Aux Out 4
 Cam Phase Valve
 Variable intake valve timing
 

N205
green/white N205
43
 Aux Out 3
 Aux 3


44
 Analogue Input 3
Wire in Wide Band O2 Sensor
45
 Air Temp
 Air Temp Sensor
G42
20, blue
46
 Signal Ground
 MAP Sensor, TPS, Air, Coolant

12, brown
13, brown
47
 Signal Ground
 Wheels

black and brown G28;  brown/blue G40
48
 Throttle Wiper
 Signal for TPS

22, green
49
 Lambda Earth
 Lambda


50
 Undriven Wheel (optional)
 Signal to Hall Sensor on Toothed Wheel
 Traction control

51
 Signal Ground
 Switches
 relay board ground

9, brown
10, brown
52
 5 VOLTS
 Hall Sensor for Undriven Wheel (50)


53
 Injector 7
 Injector 7


54
 Injector 4
 Injector 2
N31
lilac/green
55
 POWER GROUND
2 wires wired through relay board then big 'ol wire from board to engine
1, brown
2, brown


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