MembersPage/KeithHargrove/AlfaMilano/MilanoWiring

I reused the old wires I think that might slowed thing down a lot. but I got to keep the nice sealing of the OEM wires.

after working in the Black car in 108F temps I notice the whole harness can come out easy. so I pulled it out and did a lot of the work in the shade

loom_riped_out_of_car.jpg

Then after the work

reworkedharness.jpg

COP wiring

I used 2 sets of the VW harness part# 1J0-971-658-L

harness.jpg

the COPs

part# 06B-905-115-N

cop_in_head.jpg

you need the short sparkplugs like a camerry I think the 24V use the right plug too.

sparkplugs.jpg

Non-Working TPS

This is the old switch type every one that looked like this in the junkyard was a switch this is no good.

switch_tps.jpg

Working TPS

This type is has a pot inside look for this type at the junkyard.

the mounts are different but a inch chunk of plastic and a drill will fix that.

pot_tps.jpg

COP Drive

it is 5V so I need re-think this

I changed the coil mosfet resistors to 1K

at Q3 Q6 Q9 Q12 Q16 Q21

jumped gate drive to output.

added diodes out to ground this will clamp any negitive voltage on the outputs

5.1V zeners would be a beter but I did not have any.

I ended up with a NPN driving a PNP giving me a strong 0 to 12V

but I do not think it was needed.


COP setup

The pairs I will use so I can run wasted is
L-jet Pin Wire Color Transistor number in setup ECIII pin cyl
2,3 White,Yellow Q16,Q21 #0,#1 pin35,pin33 1,5
18,11 Purple,White/black Q6,Q9 #4,#5 pin11,pin12 4,3
Spark7,part 6 Purple/white,Green Q12,Q3 #6,#7 pin10,pin24 2,6

Injection

Using old wires.

I need to look at the car but the diagram out of the online books page E-43

each injectors has a red wire for power via S2 relay looks UNFUSED!!!

To ECU

L-jet Pin Wire Color Injector # number in setup ECIII pin
pin#31 Light-blue/yellow 6 INJF pin18
pin#30 White/red 5 INJE pin9
pin#14 Light-blue/red 4 INJD pin20
pin#32 Yellow/black 3 INJC pin8
pin#33 Orange/white 2 INJB pin19
pin#15 Green/white 1 INJA pin7

TPS

TPS switch (need to get a motronic pot type)
L-jet Pin Wire Color Use number in setup ECIII pin
pin#18 Purple common TPS pin1
pin#3 Yellow WOT TPS5V pin28
pin#2 White idle GND pin26

IAC

will use the same pins the powered the heater in the old thermo type

one pin goes to the S2 power fuel pump/O Orange/black

need to add a flyback diode between the pins.

L-jet Pin Wire Color Use number in setup ECIII pin
pin#34 Orange will be the IAC control INJG pin6
N/A   S2 power N/A N/A

S2 Relay enable

it looks like l-jet pin#28 Yellow/red need to go to ground to enable the S2 double relay


Fuel Pump/O Power Control

l-jet pin#4 Grey/green looks to high while cranking and will power part of S2 fuel pump/O

Fuel Pump/O Power Control
L-jet Pin Wire Color Use number in setup ECIII pin
pin#20 Pink/black looks to power S2 fuel pump/O STEP_A small#4

Fan

Fan Reley
Wire Color Use ECIII18 pin
  STEP_C 5

Tachometer

Tachometer
L-jet Pin Wire Color Use number in setup ECIII18 pin
Spark3 Green/black coil also goes to cluster(tach?) STEP_B 10

WBO

ground the green coex to gnd

WBO
L-jet Pin Wire Color Use ECIII18 pin WBO pin
part 9 Light-blue/white PUMP(-) 7 5
12Light-blue/black PUMP(+) 9 6
24Green coex NERNST_CELL1 13 1
part 6Green HEATER1(-) 18 4
N/A Orange/black Power N/A 3
Power will come from the old wire that went to the NBO

Knock

Knock Use one of the big green coex
Wire Color Use number in setup ECIII pin
Yellow KNOCK1   34
Shield Knock gnd   36
Black KNOCK2   23

Crank Trigger

Crank Trigger Use one of the big green coex
Tie the coex shield only to the VR shield
Wire Color Use number in setup ECIII pin
Yellow   TRIGG1_CONN 27
Black   GND 26

CAM Triger

CAM Triger use the black coex
Wire Color Use number in setup ECIII pin
1 Yellow TRIGG2_CONN 13
8 Brown/White GND 26
27 Grey/red 5V 27
N/A Red/black 12V N/A

CLT

L-jet Pin Wire Color Use number in setup ECIII pin
13 Brown CLT CLT 14
N/A Black Gnd Gnd 26

IAT

L-jet Pin Wire Color Use number in setup ECIII pin
N/A    MAT 2
   Gnd Gnd 26

Serial Port

Wire Color Use number in setup ECIII18 pin
Red RxD? RxD? 14
Brown TxD? TxD? 15

Power


Power
L-jet Pin Wire Color Use number in setup ECIII pin
pin#29 Red power shaired with injectors from S2 N/A N/A
pin#10 Red/black power direct from S2 +13.8VBATT 25
Grounds
L-jet Pin Wire Color Use number in setup ECIII pin
pin#5 Black ground to CLT GND 26
pin#16 Black power grounds GND5 32
pin#17 Black power grounds GND5 21
pin#35 Black power grounds GND5 5