I Bought Something Today : RB25DET

Not just any RB25DET.  An RB25DET, Automatic, and all wheel drive.

Its been up on eBay for a while. The price had been steadily dropping from $1299 down to $1099 recently. A while ago I offered the guy $1000 for it.

I tried him at $900, but he came back at $1000 shipped. Its a decent enough price for something that I don’t really “need”, so I bought it.

Now the question is going to be, what am I going to do with it ?  I am not even sure which automatic transmission it has. If its something I can even do anything with.  The transfercase looks familar. 

The RB25 oilpan rail bolts are at a little different location than the RB26, so I will have a look at that. I have made some fun of the non- RB26’s in the past, but I actually like the ones I have had a chance to play with. The response due to the variable intake timing, makes them come up quick.

I have some ideas, have some plans.  Just need to find time and money as usual.  Maybe I can find someone to help me out with some parts ?

Nissan Skyline GT-R R34 ATTESA Codes

R34(Regular)

1,5 Front right wheel sensor and circuit

2,6 Front left wheel sensor and circuit

3,7 Rear right wheel sensor and circuit

4,8 Rear left whel sensor and circuit

11,21 Front right inlet solenoid valve and circuit

12,22 Front left inlet solenoid valve and circuit

13,23 Rear inlet solenoid valve and circuit

15,25 Front right outlet solenoid valve and circuit

16,26 Front left outlet solenoid valve and circuit

17,27 Rear outlet solenoid valve and circuit

31,32,33 E-TS solenoid and circuit

34,35,36 E-TS fail safe solenoid and circuit

41,42 ABS actuator relay and circuit

43,44 ABS actuator motor , motor relay and circuit

45,46,77 ET-S/ABS control unit ground and circuit

47,48 E-TS/ABS control unit power supply and circuit

51,52 E-TS actuator motor and circuit

53,54 Pressure switch and circuit

55 Air bleed switch and circuit

56 E-TS oil level switch and circuit

61 FR and RR G sensor 1 and circuit

62 FR and RR G sensor 2 and circuit

63 FR and RR G sensor 1 or 2 and circuit

64 G sensor 1 power supply and circuit

65 G- sensor 2 power supply and circuit

66 Side G sensor and circuit

75 Throttle position sensor and circuit and sensor

 

R34 Vspec codes

21 Front right wheel sensor (open circuit)

22 Front right wheel sensor (short - circuit)

25 Front left wheel sensor (open circuit)

26 Front left wheel sensor (short circuit)

31 Rear right wheel sensor (short circuit)

32 Rear left wheel sensor (short circuit)

35 Rear left whel sensor (open circuit)

36 Rear left whell sensor (short circuit)

41 Front right outlet solenoid valve and circuit

42 Front right inlet solenoid valve and circuit

45 Front left outlet solenoid valve and circuit

46 Front left inlet solenoid valve and circuit

55 Rear outlet solenoid valve and circuit

56 Rear inlet solenoid valve and circuit

57 Battery voltage

61 ABS actuator motor and motor relay circuit

63 ABS acutuator relay circuit

64 FR & RR G sensor 1

65 FR & RR G sensor 2

66 FR & RR sensor 1 or 2

68 G sensor voltage

69 Side G sensor voltage

71 ATTESA E_TS PRO/ABS control unit and circuit

72 Throttle position sensor

73,74 E-TS/LSD actuator motor

76,77 Pressure switch

78 Air bleed switch

79 Oil level switch

91,92,93 E-TS solenoid

94,95,96 E-TS fail safe solenoid

97,98,99 LSD solenoid

More ATTESA Information.

Nissan Skyline GT-R ATTESA System Transfercase

Nissan Skyline GT-R ATTESA System Transfercase over view of internal workings of the transfer case.


This is why you can run a GT-R rear wheel drive on a dyno. With no pressure to the clutch pack, the chain that drives the front wheels does not move . Or you take out the front propshaft and there is no longer any drive to the front wheels.

I am working on some other GT-R technical videos.

Nissan Skyline GT-R ATTESA System Transfercase

Differences in R32/R33 and R34 ATTESA system transfer cases. The R32/R33 transfercase is a lot stronger than the R34 transfercase

ATTESA ETS Pro Electrical Circuit Diagram

R34 GT-R Electrical Circuit Diagram for the ATTESA ETS Pro system

More ATTESA information -