We’ll be covering all RB series engines and the RB ECU Pinout for each one of them, according to engine or Skyline trim. For those looking for wiring diagrams, refer to the chart at the bottom of the article for RB wiring into Nissan 240s.
Everything from the RB20 to the RB26 will be covered in this writeup, please submit any questions to sales@prostreetonline.com
1989-1994 Nissan Skyline R32 GTS-T
Power and Relays
Wire #
Name
Signal Type
59
Control Unit Power Supply
Power
16
ECCS Relay
Power Relay
18
Fuel Pump Relay
Power
Engine Inputs
Pin #
Name
Signal Type
53
Vehicle Speed Sensor
Speed
56
Throttle Sensor Output
0-5 volts
27
Air Flow Meter Intake Signal
khz
7
Tachometer Speed Signal
Speed
Engine VITALS
Pin #
Name
Signal Type
23
Knock Sensor (Cyl 1-3)
+0 Value
24
Knock Sensor (Cyl 4-6)
+0 Value
28
Engine Temp
Analog
Engine Swap Essentials
Pin #
Name
Signal Type
60
Ground
Ground
51
Crank Angle Sensor
120 Deg Signal
52
Crank Angle Sensor
1 Deg Signal
50
ECU Ground
Analog
10
Ignition Ground
Ground
32
Monitor and Check Lamp
Analog
1995-1996 NISSAN SKYLINE R33 Series 1
POWER AND RELAYS
Wire #
Name
Signal Type
49
Control Unit Power Supply
Power
16
ECU Relay
Power Relay
18
Fuel Pump Relay
Power
ENGINE INPUTS
Pin #
Name
Signal Type
53
Vehicle Speed Sensor
Speed
56
Throttle Sensor Output
0-5 volts
27
Air Flow Meter Intake Signal
khz
7
Tachometer Speed Signal
Speed
ENGINE VITALS
Pin #
Name
Signal Type
23
Knock Sensor (Cyl 1-3)
+0 Value
24
Knock Sensor (Cyl 4-6)
+0 Value
28
Engine Temp
Analog
ENGINE SWAP ESSENTIALS
Pin #
Name
Signal Type
60
Ground
Ground
51
Crank Angle Sensor
120 Deg Signal
52
Crank Angle Sensor
1 Deg Signal
50
ECU Ground
Analog
10
Ignition Ground
Ground
44
Neutral Switch Signal
Analog
1995-1996 NISSAN SKYLINE R33 SERIES 2
POWER AND RELAYS
Wire #
Name
Signal Type
59
Control Unit Power Supply
Power
16
ECU Relay
Power Relay
18
Fuel Pump Relay
Power
ENGINE INPUTS
Pin #
Name
Signal Type
53
Vehicle Speed Sensor
Speed
38
Throttle Sensor Signal
0-5 volts
41
Cam Position Sensor
120 Deg Signal
42
Cam Position Sensor
1 Deg Signal
ENGINE VITALS
Pin #
Name
Signal Type
23
Knock Sensor (Cyl 1-3)
+0 Value
24
Knock Sensor (Cyl 4-6)
+0 Value
27
MAF Signal
Analog
ENGINE SWAP ESSENTIALS
Pin #
Name
Signal Type
60
Ground
Ground
51
Crank Angle Sensor
120 Deg Signal
52
Crank Angle Sensor
1 Deg Signal
50
ECU Ground
Analog
10
Ignition Ground
Ground
44
Neutral Switch Signal
Analog
1989-1998 NISSAN SKYLINE R32 – R34 RB26DETT
POWER AND RELAYS
Wire #
Name
Signal Type
59
Control Unit Power Supply
Power
49
ECU Power
Power
58
Battery Power
Power
ENGINE INPUTS
Pin #
Name
Signal Type
53
Vehicle Speed Sensor
Speed
38
Throttle Sensor Signal
0-5 volts
18
Engine Coolant
Temp
16
Airflow Signal
Karman
ENGINE VITALS
Pin #
Name
Signal Type
23
Knock Sensor (Cyl 1-3)
+0 Value
24
Knock Sensor (Cyl 4-6)
+0 Value
27
MAF Signal – Rear
Analog
ENGINE SWAP ESSENTIALS
Pin #
Name
Signal Type
60
Ground
Ground
51
Crank Angle Sensor
120 Deg Signal
52
Crank Angle Sensor
1 Deg Signal
50
ECU Ground
Analog
10
Ignition Ground
Ground
44
Neutral Switch Signal
Analog
Keep in mind if you are swapping in a RB25DET that you will need to pay particular attention to the series of your motor.
Series 1 RB25DET’s put the igniter on top of the motor, mounted by 4 bolts to the spark plug cover.
If you own a series 1 or 2 and have the incorrect ECU, you can convert the 2 by wiring in your ignitor however it’s far easier just to source the right ECU.
Damage to your ECU capacitors can occur if you are not careful with your RB25DET. For more wiring information and how-to’s on the RB, check out our How To Wire a RB25DET into a S14.