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Author Topic: O2 Sensor on ECU  (Read 630 times)

ph1

  • Guest
O2 Sensor on ECU
« on: June 09, 2001, 09:53:59 PM »
Arithon  
SDU Admininstrator
(1/8/01 8:40:09 am)
Reply
  O2 Sensor on ECU
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 Can someone confirm from a service manual if the O2 sensor output is on pin 39 or 115 of the ECU on an R32 RB20DET?

Thanks

Arithon



 
Dak  
Registered User
(1/8/01 7:19:29 pm)
Reply  Re: O2 Sensor on ECU
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 Good call, both pin numbers are right, from what I can figure out pin 115 is most probably the one.
 
deee
Unregistered User
(1/15/01 6:56:08 am)
Reply  ECU pin out for RB26dett
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Terminal number        Description        Terminal number        Description
1        Ign signal (power transistor) Cyl #1        11        Ign signal (power transistor) Cyl #6
2        Ign signal (power transistor) Cyl #5        12        Ign signal (power transistor) Cyl #2
3        Ign signal (power transistor) Cyl #3        13        Ign signal (power transistor) Cyl #4
4        AAC valve        14        -
5        -        15        -
6        Sub electrical fan relay (engine temp switch)        16        ECCS relay
7        Tacometeter speed signal        17        -
8        -        18        Fuel pump relay
9        AC relay (AC cut signal)        19        Power steering oil pressure switch
10        Ground (ign signal system)        20        Ground (ignition signal system)
                       
21(RX)        Receive (control unit data reception)        31 CLK)        Clock (syncronization signal)
22 (TX)        Transmit (data sent from control unit)        32        Monitor and check lamp (red)
23        Detonation sensor 1 (cyl 1-3)        33        -
24        Detonation sensor 2 (cyl 4-6)        34         Air flow meter ground
25        Wastegate valve control solenoid valve        35        Air flow meter inatek air quantity signal (front)
26        Air flow meter ground        36        Intak eair temp sensor
27        Air flow meter intake air quantity signal (rear)        37        -
28        Engine temp sensor        38        Throttle opening output
29        Exhaust temp sensor (front)        39        -
30        Sensor ground (throttle sensor, engine temp sensor)        40        -
                       
41        Crank angle sensor (120degree signal)        51        Crank angle sensor (120 degree signal)
42        Crank angle sensor (1 degree signal)        52        Crank angle sensor (1 degree signal)
43        Ignition switch START signal        53        Vehicle speed sensor
44        Neutral switch        54        Throttle valve switch (idle connection point)
45 (IGN)        Ignition switch (IGN)        55        Exhaust gas sensor (rear)
46        AC switch        56        Throttle sensor output signal
47 (CHK)        Check (diagnosis activation)        57        Throttle valve switch power supply
48        Throttle sensor power supply supply        58        Battery power supply
49        Control unit power supply        59        Control unit power supply
50        Ground (control unit)        60        Ground (control unit)
                       
101        Injector #1        109        Injector power supply (counter electromotive reflex circuit)
102         -        110        Injector #5
103        Injector #3        111        -
104        Fuel pump terminal voltage control output (FPCM)1        112        Injector 6
105        Injector #2        113        -
106        Fuel pump terminal voltage control output (FPCM)2        114        Injector 4
107        Injector ground        115        -
108        Injector ground        116        Injector ground



 
Arithon  
SDU Admininstrator
(1/15/01 7:46:02 am)
Reply
  Re: ECU pin out for RB26dett
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 Thanks for that deee.

It is now ibviously connected to pins 29 and 115 on the RB20DET, and looking at the diagrams I have for the RB20DET and RB26DETT engines, it is most probably pin 29.

I wonder what signal is running on pin 53 (vehicle speed sensor) I reckon if I could hook onto that I could whack my laptop on it, and write an app to give me 1/4 mile times


HMMMMMMMMMM, I can see a project in this.

 

Arithon

 
Arithon  
SDU Admininstrator
(1/15/01 8:24:29 am)
Reply
  Re: ECU pin out for RB26dett
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 Oh, and while i'm at it, where is the vehicle speed sensor located?

Is it on one of the shafts AFTER the diff?

I would assume that to be the best place so the ECU doesnt need to know what gear you're in, or what ratio diff you have in the car.

Cheers

Arithon

 
GraemeWi
Registered User
(1/15/01 5:46:56 pm)
Reply
  Re: ECU pin out for RB26dett
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 9 AC relay (AC cut signal) 19 Power steering oil pressure switch

Hmmm. Wonder if this has anything to do with your power steering problem? With the stock ECU it must do something or react to power steering inputs, wonder if your Link is doing anything with this signal?


 
Arithon  
SDU Admininstrator
(1/16/01 6:19:08 am)
Reply
  Re: ECU pin out for RB26dett
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 Hmmmmmm, good call.

I might have to jot that down.

Cheers

Arithon



 
Arithon  
SDU Admininstrator
(1/16/01 10:51:03 am)
Reply
  Re: ECU pin out for RB26dett
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 Hey mrmeal. Any chance of those instructions for the Apexi speed meter being scanned in and sent to me?

Arithon

 
Arithon  
SDU Admininstrator
(1/16/01 2:46:46 pm)
Reply
  Re: ECU pin out for RB26dett
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 Woops, no worries mrmeal

I found an english manual for the speed meter on the apexi-usa site.

It shows pics of the connectors on heaps of different computers, including the entire skyline range.

But only the ones relevant to the speed meter, ie rpm, VSS, power, ignition and ground.

Arithon