Tuner Resources

2004 Subaru Impreza WRX STi ECU Diagram

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Connector B134

Pin #

Name

Signal Type

23

Engine Speed Output Sensor

RPM

Connector B135

Pin #

Name

Signal Type

1

Power Ground

Ground

27

Vehicle Speed Sensor

Speed

Connector B136

Pin #

Name

Signal Type

8

Brake Switch 2

Analog

9

Brake Switch 1

Analog

13

Intake Air Temperature Sensor

Analog

17

Accelerator Position Sensor

Analog

18

Electric Throttle Sensor

Analog

21

Fuel Tank Pressure Sensor

Analog

22

Manifold Absolute Pressure Sensor

Analog

23

Mass Air Flow Sensor

Analog

 

 

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