1JZ to Supra wiring specifics

A lot of people are looking at doing this but are unsure of the wiring procedure, below is a list of my notes after successfully completing this conversion.

These notes are about 97% accurate as I think I changed a wire or two but can not be sure as to which but I can guarantee that the car WILL run wired this way, the only thing that doesn't read correctly is the dash temp gauge (I have fitted an aftermarket temp gauge and now use that)

There are 5 Soarer plugs that need reducing into the 3 Supra plugs.

These notes are as follows.....Soarer plug orange 23 pin to Supra plug colour and pin number:

SOARER ORANGE 23 PIN

1 pink/black to Supra orange plug 21

2 green/yellow to Supra grey plug 17

3 grey/yellow to Supra grey 13

4 turquoise to grey 5

5 green/red to grey 6

6 red to orange 8

7 blue/red to orange 2

8 black to orange 29

9 yellow/green to orange 24

10 to orange 12

11 red/black to orange 36

12 grey to orange 7

13 blue to orange 1

14 green/white to orange 18

15 not used

16 green to orange 17

17 white to orange 27

18 blue/yellow to orange 15

19 white/red to orange 6

20 yellow/black to orange 25

21 green/orange to white 3

22 grey/red to orange 5

23 purple/red to orange 33

SOARER WHITE 25 PIN

1 black/orange to grey 9

2 blue to grey 16

3

4

5

6

7

8

9 green to grey 19

10

11 brown /black to grey 18 (this one and 23 below need checking)

12

13

14

15

16

17

18

19

20

21

22

23 brown to grey 18

24

25 purple to grey 15

SOARER GREY 14 PIN

1 green to grey 8

2 red/blue to orange 20 (needs checking with soarer white 12 pin plug wire number 2 below)

3 black/orange to grey 1

4

5 yellow/green to orange 34

6 black/white to grey 7

7 black/orange to grey 9

8 pink to grey 12

9

10 yellow to orange 23 (needs checking with soarer grey 17 pin plug wire number 13 below)

11 red/yellow to orange 32

12 black/red to orange 13

13

14 red/g to grey 4

SOARER GREY 17 PIN

1 red to grey 3

2 white/red to white 10

3 pink to orange 11

4

5

6 green/black to orange 4

7 green/white to grey 11

8

9 brown/yellow to white 11

12

13 black/yellow to orange 23

14

15

16 green/red to orange 14

17

SOARER WHITE 12 PIN

1

2 to orange 20

3

4 to orange 26

5 to orange 31

6

7

8

9

10

11

12

These are the notes I made and worked from, please update this thread with any corrections or additions regarding air-con etc.

I hope these are useful to anybody thinking of doing this conversion.

I'm glad you have done this as saves me doing it. Will check my notes against yours at some point.

Good call Robert, this'll be good reference. Others can post the missing info later and if you could edit these into your first post, the jobs jobbed.

I'll link this thread into the N/A-T Group so it can easily be found.

I'm pretty sure that the blanks have no wires in those locations at all, not that I'm not sure of them but the Soarer plugs do have a lot of unused pins.

I'm glad you have done this as saves me doing it. Will check my notes against yours at some point.

No worries Ian, always planned on doing it at some point.

- - - Updated - - -

Good call Robert, this'll be good reference. Others can post the missing info later and if you could edit these into your first post, the jobs jobbed.

 

I'll link this thread into the N/A-T Group so it can easily be found.

Cheers David.

Connector II 1 (Orange)

1. Neutral Signal 12v (Light Blue)

2. (CI1-7) Speed Sensor (Light Blue/Red)

3. Not Connected

4. (CF1-6) Progressive Power Steering SOL+ (Light Green/Black)

5. (CI1-22) Over Drive Switch (Blue/Light Blue)

6. Not Connected

7. Park Signal 12v+ (Grey)

8. (CI-6) Speed Sensor (Red)

9. Not Connected

10. AC Clutch to AC Amplifier (Light Blue)

11.(CF1-3 Speed Sensor (Pink)

12. AB Diagnostic (AirBag) (Black/Yellow)

13.(CF1-11) Ignition Switch to ECU (Black/Orange)

14.(CF1-16) Progressive Power Steering SOL- (Light Green/Red)

15.(CI1-18) Engine Check Light (Light Blue/Black)

16. Not Connected

17. Second Signal 12v+ (Light Green/Red)

18. Drive Signal 12v+ (Green/Red)

19.(CI1-9) Gauge Temp Sender (Yellow/Light Blue)

20.(CI1-1) AC Lock Sensor (Violet/White)

21. TC Diagnostic port from ABS (Pink/Black)

22. Theft Deterent ECU (White/Light Blue)

23.(CF2-10) Gauge Fuse Power (Yellow) Reversing Light,Dash,Alternator.

24.(CI2-23) Gauge Temp Sender Ground (Brown)

25.(CI1-20) Gauge Oil Pressure Warning (Yellow/Black)

26. AC Locking Sensor to AC Amplifer (Green/Yellow)

27. Low Range Signal 12v+ (Green/Black)

28. Not Connected

29.(CI1-8) Tacho Signal to ECU (Black/White)

30. Not Connected

31.(CH1-5) AC Amplifier (Light Blue/Red)

32.(CF2-11) Elecrical Load Sense (Red/Yellow)

33. Engine Oil Level Sender (Green)

34. Alternator Charge Warning Light (Yellow/Green)

35. Not Connected

36. Reverse Signal 12v+ (Red/Black)

37. Not Connected

38. Manual Mode Light (White/Light Blue)

Connector EA1 (Black)

1. AC Magnetic Clutch (Light Blue)

2. AC Clutch (White/Green)

3. Starter (Black)

4. Battery (Yellow/Black)

5. Not Connected

6. WB Diagnostic port from ABS (Black/Red)

7. Horn/Hazards Power (White)

8. Main_Relay (Gray)

Connector EA2 (Black)

1. Starter Motor Solenoid Relay (Black)

2. Starter (Black) or B+ (Black/Red) Feeds ECU & Sub O2 Sensor

3. Not Connected

4. Alternator Sense (White)

5. B+ (Black/Red) Feeds Maf,Intake VSV Exhaust VSV, Main O2 Sensor,Fuel Pressure Up VSV,Both Waste gate Valves), Diag port, Idle Valve & EVAP)

Connector EA3 (Black)

1. Starter Motor Solenoid Relay (Black)

2. Alternator Sensing (White)

3. Power from EFI Main Relay feeding ECU B+, O2 & SUB O2 Sensor, EGR vsv, FPU vsv, ACIS vsv, EVAP vsv. ISCV and DIagnositic Port B+ (Black/Red)

Connector IJ1 (Dark Grey)

1. Coil Power (Black/Red)

2. Not Connected

3. (CF1-1) Idle 1 in TPS Switch to Cruise Ecu (Red)

4. (CF2-14) Fuel Pump Control FPC (Violet/White)

5. (CI1-4) TE1 Diagnostics port (Yellow/Green)

6. (CI1-5) TT Diagnostics port (Grey and Red)

7. (CF2-6) Neutral/Park Start Inhibitor (Black/White)

8. (CF2-1) Fuel Pump power (Light Blue/Red)

9. (CF2-3&7) Ignition Switch to Resistor Pack & Ignitor (Black/Orange)

10.(CI1-20) Gauge Oil Pressure Warning (Yellow/Black)

11.(CF1-7) Stop Light Switch (Green/White)

12.(CF2-8) Fuel Pump Control DI (Green)

13.(CI1-3) VF1 Diagnostics port (Light Green)

14.(CI2-19) EXO Signal from Trac Ecu to Engine Ecu (Yellow/Red)

15.(CI1-25) TS Diagnostic port from ABS (Yellow)

16.(CI2-2) WA Diagnostic port from ABS (Light Blue)

17.(CI1-2) TE2 Diagnostics port (Pink/Green)

18.(CI2-23) Engine Ground (Brown)

19.(CI2-9) CCO Diagnostic port from Cat temp Sensor (Light Green/Black)

20. SUB O2 Power (Black/Red)

Connector IJ2 (White)

1. Not Connected

2. NEO signal from Trac Ecu to Engine Ecu (Pink/Light Blue)

3. Kick Down Switch (Yellow)

4. SUB O2 Sheild (Braid)

5. SUB O2 Sensor Heater Ground (Brown/White)

6. Not Connected

7. Cruise Control (Green/Red)

8. NOt Connected

9. Start Signal (Black) A/T only

10. Engine ECU to Cruise ECU (Solenoid S2 related) (Red/Light Blue)

11. Cruise ECU to Engine ECU (Overdrive related) (Brown/Black)

12. Manual Mode Switch (Green/Yellow)

13. Starter Signal (Black) (A/T only)

14. SUB O2 Sensor (Red/Light Blue)

15. Not Connected

16. Not Connected

NOTES

-----

(CI1-21) Power Normal trans patten switch (This I sure is a toggle not a momentary on a Soarer)

(CI2-11) Gound for the Dash speed sensor (May need connecting)

(CI2-23) Engine Gound - I've also tied this to the coolant temp sensor ground path for the dash

No kickdown switch on a Soarer

Cruise info not available,

AC system connections vague

Just to add A bit more meat to the pins on the supra side.

Comprehensive list of the Supra pin outs and functions there Lyndon,

Thanks mate.

Yeah, will help people do other conversion like 1uz's and the like.

EA2 I think must be a Canada or US spec fuse box connector as I've never seen one.

I didn't mention that the CF, CI and CH codes refer to the 1jz Soarer connectors.

Will be using this on my conversion top job mate

Connector II 1 (Orange)

 

1. Neutral Signal 12v (Light Blue)

2. (CI1-7) Speed Sensor (Light Blue/Red)

3. Not Connected

4. (CF1-6) Progressive Power Steering SOL+ (Light Green/Black)

5. (CI1-22) Over Drive Switch (Blue/Light Blue)

6. Not Connected

7. Park Signal 12v+ (Grey)

8. (CI-6) Speed Sensor (Red)

9. Not Connected

10. AC Clutch to AC Amplifier (Light Blue)

11.(CF1-3 Speed Sensor (Pink)

12. AB Diagnostic (AirBag) (Black/Yellow)

13.(CF1-11) Ignition Switch to ECU (Black/Orange)

14.(CF1-16) Progressive Power Steering SOL- (Light Green/Red)

15.(CI1-18) Engine Check Light (Light Blue/Black)

16. Not Connected

17. Second Signal 12v+ (Light Green/Red)

18. Drive Signal 12v+ (Green/Red)

19.(CI1-9) Gauge Temp Sender (Yellow/Light Blue)

20.(CI1-1) AC Lock Sensor (Violet/White)

21. TC Diagnostic port from ABS (Pink/Black)

22. Theft Deterent ECU (White/Light Blue)

23.(CF2-10) Gauge Fuse Power (Yellow) Reversing Light,Dash,Alternator.

24.(CI2-23) Gauge Temp Sender Ground (Brown)

25.(CI1-20) Gauge Oil Pressure Warning (Yellow/Black)

26. AC Locking Sensor to AC Amplifer (Green/Yellow)

27. Low Range Signal 12v+ (Green/Black)

28. Not Connected

29.(CI1-8) Tacho Signal to ECU (Black/White)

30. Not Connected

31.(CH1-5) AC Amplifier (Light Blue/Red)

32.(CF2-11) Elecrical Load Sense (Red/Yellow)

33. Engine Oil Level Sender (Green)

34. Alternator Charge Warning Light (Yellow/Green)

35. Not Connected

36. Reverse Signal 12v+ (Red/Black)

37. Not Connected

38. Manual Mode Light (White/Light Blue)

 

Connector EA1 (Black)

 

1. AC Magnetic Clutch (Light Blue)

2. AC Clutch (White/Green)

3. Starter (Black)

4. Battery (Yellow/Black)

5. Not Connected

6. WB Diagnostic port from ABS (Black/Red)

7. Horn/Hazards Power (White)

8. Main_Relay (Gray)

 

 

Connector EA2 (Black)

 

1. Starter Motor Solenoid Relay (Black)

2. Starter (Black) or B+ (Black/Red) Feeds ECU & Sub O2 Sensor

3. Not Connected

4. Alternator Sense (White)

5. B+ (Black/Red) Feeds Maf,Intake VSV Exhaust VSV, Main O2 Sensor,Fuel Pressure Up VSV,Both Waste gate Valves), Diag port, Idle Valve & EVAP)

 

Connector EA3 (Black)

 

1. Starter Motor Solenoid Relay (Black)

2. Alternator Sensing (White)

3. Power from EFI Main Relay feeding ECU B+, O2 & SUB O2 Sensor, EGR vsv, FPU vsv, ACIS vsv, EVAP vsv. ISCV and DIagnositic Port B+ (Black/Red)

 

Connector IJ1 (Dark Grey)

 

1. Coil Power (Black/Red)

2. Not Connected

3. (CF1-1) Idle 1 in TPS Switch to Cruise Ecu (Red)

4. (CF2-14) Fuel Pump Control FPC (Violet/White)

5. (CI1-4) TE1 Diagnostics port (Yellow/Green)

6. (CI1-5) TT Diagnostics port (Grey and Red)

7. (CF2-6) Neutral/Park Start Inhibitor (Black/White)

8. (CF2-1) Fuel Pump power (Light Blue/Red)

9. (CF2-3&7) Ignition Switch to Resistor Pack & Ignitor (Black/Orange)

10.(CI1-20) Gauge Oil Pressure Warning (Yellow/Black)

11.(CF1-7) Stop Light Switch (Green/White)

12.(CF2-8) Fuel Pump Control DI (Green)

13.(CI1-3) VF1 Diagnostics port (Light Green)

14.(CI2-19) EXO Signal from Trac Ecu to Engine Ecu (Yellow/Red)

15.(CI1-25) TS Diagnostic port from ABS (Yellow)

16.(CI2-2) WA Diagnostic port from ABS (Light Blue)

17.(CI1-2) TE2 Diagnostics port (Pink/Green)

18.(CI2-23) Engine Ground (Brown)

19.(CI2-9) CCO Diagnostic port from Cat temp Sensor (Light Green/Black)

20. SUB O2 Power (Black/Red)

 

Connector IJ2 (White)

 

1. Not Connected

2. NEO signal from Trac Ecu to Engine Ecu (Pink/Light Blue)

3. Kick Down Switch (Yellow)

4. SUB O2 Sheild (Braid)

5. SUB O2 Sensor Heater Ground (Brown/White)

6. Not Connected

7. Cruise Control (Green/Red)

8. NOt Connected

9. Start Signal (Black) A/T only

10. Engine ECU to Cruise ECU (Solenoid S2 related) (Red/Light Blue)

11. Cruise ECU to Engine ECU (Overdrive related) (Brown/Black)

12. Manual Mode Switch (Green/Yellow)

13. Starter Signal (Black) (A/T only)

14. SUB O2 Sensor (Red/Light Blue)

15. Not Connected

16. Not Connected

 

NOTES

-----

 

(CI1-21) Power Normal trans patten switch (This I sure is a toggle not a momentary on a Soarer)

(CI2-11) Gound for the Dash speed sensor (May need connecting)

(CI2-23) Engine Gound - I've also tied this to the coolant temp sensor ground path for the dash

 

No kickdown switch on a Soarer

 

Cruise info not available,

 

AC system connections vague

 

Just to add A bit more meat to the pins on the supra side.

Hi, I have a Lexus is200 and currently in the process of putting a 1JZ into it, the 1j was originally from a chaser and then was dropped into a mkIV supra, For some strange reason the guy scraped the car, from what i could see it was mint but I got the engine and it was mostly wired for a supra with an EMU standalone...

Anyway it has the orange 38pin and grey 20pin from the above list and i have been rewiring it accordingly, what i casnt work out or find out is where orignally these plugs would have been in the supra? where would they normally plug into for the supra, its just thrown up some confusion as there are a fair few wires in the wrong places, injectors where wired up all wrong along with a couple of sensors and the VSS.

Thanks for your help

Only just spotted this post, all the blocks connect to the supra wiring in the passenger footwell, ecu to the right and all other block connections on the left.

A lot of people are looking at doing this but are unsure of the wiring procedure, below is a list of my notes after successfully completing this conversion.

These notes are about 97% accurate as I think I changed a wire or two but can not be sure as to which but I can guarantee that the car WILL run wired this way, the only thing that doesn't read correctly is the dash temp gauge (I have fitted an aftermarket temp gauge and now use that)

There are 5 Soarer plugs that need reducing into the 3 Supra plugs.

 

These notes are as follows.....Soarer plug orange 23 pin to Supra plug colour and pin number:

 

SOARER ORANGE 23 PIN

 

1 pink/black to Supra orange plug 21

2 green/yellow to Supra grey plug 17

3 grey/yellow to Supra grey 13

4 turquoise to grey 5

5 green/red to grey 6

6 red to orange 8

7 blue/red to orange 2

8 black to orange 29

9 yellow/green to orange 24

10 to orange 12

11 red/black to orange 36

12 grey to orange 7

13 blue to orange 1

14 green/white to orange 18

15 not used

16 green to orange 17

17 white to orange 27

18 blue/yellow to orange 15

19 white/red to orange 6

20 yellow/black to orange 25

21 green/orange to white 3

22 grey/red to orange 5

23 purple/red to orange 33

 

SOARER WHITE 25 PIN

 

1 black/orange to grey 9

2 blue to grey 16

3

4

5

6

7

8

9 green to grey 19

10

11 brown /black to grey 18 (this one and 23 below need checking)

12

13

14

15

16

17

18

19

20

21

22

23 brown to grey 18

24

25 purple to grey 15

 

SOARER GREY 14 PIN

 

1 green to grey 8

2 red/blue to orange 20 (needs checking with soarer white 12 pin plug wire number 2 below)

3 black/orange to grey 1

4

5 yellow/green to orange 34

6 black/white to grey 7

7 black/orange to grey 9

8 pink to grey 12

9

10 yellow to orange 23 (needs checking with soarer grey 17 pin plug wire number 13 below)

11 red/yellow to orange 32

12 black/red to orange 13

13

14 red/g to grey 4

 

SOARER GREY 17 PIN

 

1 red to grey 3

2 white/red to white 10

3 pink to orange 11

4

5

6 green/black to orange 4

7 green/white to grey 11

8

9 brown/yellow to white 11

12

13 black/yellow to orange 23

14

15

16 green/red to orange 14

17

 

SOARER WHITE 12 PIN

 

1

2 to orange 20

3

4 to orange 26

5 to orange 31

6

7

8

9

10

11

12

 

 

 

These are the notes I made and worked from, please update this thread with any corrections or additions regarding air-con etc.

 

I hope these are useful to anybody thinking of doing this conversion.

Hi mate can you answer why pin 7 on soarer grey 14pin orange and black goes to supra grey pin 9 but also have another wite going to the supra grey pin 9 the soarer white 25pin plug pin 1 orange and black? Do you join both to same pin 9? Thanks