Running New Wiring.. Need Help Please

[NickRBs13]

I have an rb20det swap into my nissan 240sx and i have to de-loom my harness a little bit and run new air flow meter wiring from the sensor to their pinout locations and i need some clearing up from some wiring people. my air flow meter harness has a short so i'll be just running new wiring for it instead of buying a new harness.

ok so here goes my list of things.

afm air signal would run to ecu pin 27

afm signal ground would run to ecu pin 26

now for the hard part having trouble tracking down where to run the power gorund and power.

afm power wire goes to where????? an ecu pin or the green eccs relay and if so the relay which wire and pin number on the relay?

and afm power ground wire goes to where???? an ecu pin or the eccs relay again, or can i just take the afm power ground on the 3d pin on the mass air sensor to a body chassis ground bolt?

alright i hope you guys can mnaybe help me and maybe even draw me up something to help.

thanks

[vitz_n1]

I have an rb20det swap into my nissan 240sx and i have to de-loom my harness a little bit and run new air flow meter wiring from the sensor to their pinout locations and i need some clearing up from some wiring people. my air flow meter harness has a short so i'll be just running new wiring for it instead of buying a new harness.

ok so here goes my list of things.

afm air signal would run to ecu pin 27

afm signal ground would run to ecu pin 26

now for the hard part having trouble tracking down where to run the power gorund and power.

afm power wire goes to where????? an ecu pin or the green eccs relay and if so the relay which wire and pin number on the relay?

and afm power ground wire goes to where???? an ecu pin or the eccs relay again, or can i just take the afm power ground on the 3d pin on the mass air sensor to a body chassis ground bolt?

alright i hope you guys can mnaybe help me and maybe even draw me up something to help.

thanks

i cant think off the top of my head sorry mate, but do you have a wiring diagram or just a pinout? it might be the eccs relay, i think the output side of the switch runs to your afm and 2 or 3 other sensors.

if you get a diagram it should be just a case of following where the wire goes to, ill try dig up my rb20 diagram and have a look.

[AdamsFast1]

I found this in my manual, for RB20E but should be in the same ballpark. hope it helps.

[NickRBs13]

yeah i have those but for an rb20det but they are f*cking me up.

was hopeing you guys could make something easier for me to follow?

Edited May 2, 2008 by NickRBs13

[vitz_n1]

i have an rb20 wiring diagram i can scan it at work but you'll have to wait till tom/tues before i can get it to ya.

[NickRBs13]

ok

[rb2240sx]

i have an rb20 wiring diagram i can scan it at work but you'll have to wait till tom/tues before i can get it to ya.

Do you think you could send that to me too please?

[Craved]

Do you think you could send that to me too please?

engine wiring for r32 RB20det - thanks to PaulR33 and his site http://paulr33.skylinesaustralia.com/

http://paulr33.skylinesaustralia.com/diagr...gine-wiring.zip

[rb2240sx]

engine wiring for r32 RB20det - thanks to PaulR33 and his site http://paulr33.skylinesaustralia.com/

http://paulr33.skylinesaustralia.com/diagr...gine-wiring.zip

Sorry, but I'm looking for an engine wiring diagram, thats body electrical. I'm looking for a diagram that contains the CAS, injectors, ignitor, coils, knock sensors, and the other bits of the engine sensors and actuators. Do you know what I'm talking about and where to find that?

[NickRBs13]

yeah i nkow what ur talking about i wish i had it too..

craved that link u sent does not help people its all f*cked up you can't even read it or see where shit goes..

i need a digram with wire colors to each pin.

f*cking black lines dont help me.

[Craved]

wiring diagrams never show where the shit goes, cut the attitude. since i can read it have you zoomed in ?

RB20E - RB25de/t - RB26 AFM's all earth to the ECU according to wiring diagrams the wiring diagrams i have for those.

rb20det eccs control unit pin layout.

1 Ign signal (power transistor) Cyl #1

2 Ign signal (power transistor) Cyl #5

3 Ign signal (power transistor) Cyl #3

5 engine. A/T control input signal (bt1)

6 Sub electrical fan relay (engine temp switch)

7 Tacometeter speed signal

9 AC relay (AC cut signal)

10 Ground (ign signal system)

11 Ign signal (power transistor) Cyl #6

12 Ign signal (power transistor) Cyl #2

13 Ign signal (power transistor) Cyl #4

14 engine. a/t control input sigal (bt2)

15 engine. a/t control input sigal (bt3)

16 ECCS relay

18 fuel pump relay

19 Power steering switch

20 Ground (ignition signal system)

21(RX) Receive (control unit data reception)

22 (TX) Transmit (data sent from control unit)

23 Detonation sensor 1 (cyl 1-3)

24 Detonation sensor 2 (cyl 4-6)

26 Air flow meter ground

27 Air flow meter intake air quantity signal

28 Engine temp sensor

29 Exhaust gas sensor

30 Sensor ground (throttle sen, ENG temp)

31 clock (synchronization signal)

32 Monitor and check lamp (red)

38 Throttle opening output

41 Crank angle sensor (120degree signal)

42 Crank angle sensor (1 degree signal)

43 Ignition switch START signal

44 Neutral switch

45 Ignition switch (IGN)

46 AC switch

47 (CHK) Check (diagnosis activation)

48 Throttle sensor power supply

49 Control unit power supply

50 Ground (control unit)

51 Crank angle sensor (120 degree signal)

52 Crank angle sensor (1 degree signal)

53 Vehicle speed sensor

54 Throttle valve switch (idle connection pt)

56 Throttle sensor output signal

57 Throttle valve switch power supply

58 Battery power supply

59 Control unit power supply

60 Ground (control unit)

101 Injector #1

103 Injector #3

104 Fuel pump terminal voltage control output

105 Injector #2 107 Injector ground

108 Injector ground

109 Injector power supply

110 Injector #5

112 Injector #4

114 Injector #6

115 exhaust gas sensor heater ground

116 injector ground

FROM : http://www.northwestnissans.com/board/showthread.php?t=26965

http://www.skylinesaustralia.com/forums/Ne...rin-t49933.html

thats enough of my time helping out - ECU wiring diagrams seem to be rare for the rb20det - rb20e and rb25 and rb26 are all on the r33 engine workshop manual.