R34 Neo Engine Harness Help...

[The_MuffinMan25]

I got my engine harness yesterday. I took a ECU Pin out diagram and labeled every wire color for reference,

http://www.flickr.com/photos/10300981@N05/6166315259/

I took a 95 KA F3 Plug Pin Out and matched up what wires were used with my RB20 so I know what I needed to look for/use to atleast start)

Matched to this chart Dont mind my nonsense notes was up til 5am lol

http://www.flickr.com/photos/10300981@N05/6166316837/

I made this chart:

R34 RB25DET NEO F3 Plug

X- Y (Z)

X= F3 Pin #, Y= Wire Color, Z= ECU Pin #

48- Red (3) REVERSE

47- Black and White (67,114) INJECTOR #4

46- Green and Red (68) O/D OFF LAMP

45- Green (70) A/T MODE SWITCH SNOW

44- Blue and Black (??? to Engine)

43- Yellow and Red (29) VSS

42- Yellow and Red (39) NEUTRAL SIGNAL

41- Orange and Black (18) NOT LISTED IN FSM

40- Yellow and Purple (5) TACH

39- Light Green and Red (38) "0" POSITION

38- Brown and Red (27) NOT LISTED IN FSM

37- Green and Black (??? to Engine)

36- Black and Pink (32) CONTROL UNIT GROUND

35- BLANK

34- White and Black (65) DB 1 SIGNAL

33- Blue and Pink (66) DB 3 SIGNAL

16- Blue and Black (??? to Engine)

15- Blue (108) CANISTER PURGE COTROL VALVE

14- Black (25) CONTROL UNIT GROUND

13- BLANK

12- BLANK

11- BLANK

10- BLANK

9- BLANK

32- Brown and Yellow (75) RECIEVE DATA

31- Yellow and Black (48) TPS POWER

30- Light Green (33) IDLE POSITION SWITCH

29- Gray and Red (20) IGN START SIGNAL

28- Red and White (17) MALFUNCTION (MIL)

27- Yellow and Pink (76) TRANSMIT DATA

26- Brown (??? to Engine)

25- Green and Orange (31) IGN POWER SUPPLY

24- Blue (34) "1" POSITION

23- Blue and Yellow (35) "2" POSITION

22- Black and Pink (13) FUEL PUMP RELAY

21- Black and Red (1) CYL #1 SIGNAL

20- Red and Yellow (8) CYL #2 SIGNAL

19- Brown and White (43) SENSOR GROUND

18- Orange (111) FUEL PUMP VOLTAGE

17- BLANK

8- White and Blue (55) MAF

7- Blue and Red (121) SHIFT SOLENOID A

6-Blue and Yellow (122) SHIFT SOLENOID B

5- BLANK

4- BLANK

3- BLANK

2- BLANK

1- BLANK

MY RB20 only used the following wires to run off of:

48-ASCD Vacuum Motor No idea what this is suppose to match to on the NEO

47- ASCD Release Valve No idea what this is suppose to match to on the NEO

42- Wiper Variable Intermittent Switch

34- Start Signal

11- Fuel Pump Relay

32- ASCD Air Valve No idea what this is suppose to match to on the NEO

31- ASCD Actuator Power No idea what this is suppose to match to on the NEO

30- MIL Lamp

28- Temp Guage Sending Wire ECU has PURPLE wire to Temp guage but no wire to the F3 Plug

27- Wiper Intermittent Switch

26- Tach

17- Battery Lead to ECCS Relay No idea what this is suppose to match to on the NEO I need this for sure

8- Wiper Off/Int Switch

7- Wiper Motor Low

6- Wiper Motor High

5- Ignition Lead to Wiper Motor

4- Washer Switch

1- Ignition Lead to Injectors No idea what this is suppose to match to on the NEO I need this aswell

There were plugs not used on my 20 that I think must have been wired into a common source down more into the harness because #18 O2 Sensors, EGRC, EVAP purge, IACV, and TPS seems important, Also the VSS which had no wire to it on my plug yet speedo worked.

I literally have no one to help me with this... I clearly have been doing my homework so if you could help with these wires and what they translate to on my NEO harness I'd really appreciate it. I will have to look into those ASCD wires as I have no clue what they are used for or mean. Wipers will be dealt with another time.

So I'm almost positive I was sent an Auto Harness, if anyone could help identifying any of these plugs it would be very helpful, I printed out some pages from the FSM to try and follow the wires from the sensors to the ECU, Doesn't seem like I can find wires that match up to help identify them.

http://i145.photobucket.com/albums/r216/the_muffinman25/IMAG0133-1.jpg

http://i145.photobucket.com/albums/r216/the_muffinman25/IMAG0141.jpg

Not sure if this is right, I was pretty sure my RB20 lower harness plugged in here, but still a missing plug

http://i145.photobucket.com/albums/r216/the_muffinman25/IMAG0136.jpg

So is this my ECCS Relay? well minus the relay (what could I use for this relay? like fin at Pick N Pull)

http://i145.photobucket.com/albums/r216/the_muffinman25/IMAG0138.jpg

These seem to go nowhere, possibly for the Auto tranny harness?

http://i145.photobucket.com/albums/r216/the_muffinman25/IMAG0142.jpg

Blue I believe is the Canister Purge Connector the black one is for my Coilpack harness, the brown and purple plug I'm not 100% on what they are for.

http://i145.photobucket.com/albums/r216/the_muffinman25/IMAG0143.jpg

One with Tape is my MAF but the other goes nowhere, only plug the FSM says is by there is the refrigerant pressure sensor...

http://i145.photobucket.com/albums/r216/the_muffinman25/IMAG0144.jpg

From the front side of the motor on the throttle body, believe they are for the traction control, so none are used correct

http://i145.photobucket.com/albums/r216/the_muffinman25/IMAG0145.jpg

My TPS....no plugs on the harness plug into it

http://i145.photobucket.com/albums/r216/the_muffinman25/IMAG0146.jpg

Valve Timing...no plugs fit here either

http://i145.photobucket.com/albums/r216/the_muffinman25/IMAG0130.jpg

Green Plug Seems to match up for AUTO wiring so no concerned I suppose, the other 2 go to nothing tho

http://i145.photobucket.com/albums/r216/the_muffinman25/IMAG0131.jpg

If anyone wants to help me out I can give u more pics and detail...I don't see a point in trying to follow every wire back to the ECU if I have nothing to plug them into I sat all this morning and afternoon looking at every wire on each plug its not helping. It almost seems like this harness isn't for my motor, but the Injectors, MAF, coil packs, and Water temp plug in...

Any help from actual owners would be greatly appreciated!

Tim

[simoN67]

I have same problem I was wondering if auto hardness and Manuel are different