812300 - Subaru 4 Bar MAP Sensor (Discontinued)




Subaru WRX 2002 - 2007
Subaru STI 2004 - 2019
Subaru FXT 2004 - 2008


Congratulations on your purchase of the COBB Subaru 4 Bar MAP Sensor! The following instructions will assist you through your installation process. Please read them first BEFORE beginning the install and familiarize yourself with the steps and tools needed. If you feel that you cannot properly perform this installation, we HIGHLY recommend you take the vehicle to a qualified and experienced automotive technician.

Part List

  • COBB 4 Bar MAP Sensor
  • 2 x Hex Screws
  • 2 x Locking Washers

Tools Needed
  • 3mm Hex Key
  • Phillips Head Screwdriver

Removing the Factory MAP Sensor

  1. With the hood of your vehicle open, locate the factory MAP Sensor located on the top of the throttle body.
  2. Unclip the connector from the factory sensor by pressing down on the tab at the rear of the connector.
  3. Using a phillips head screwdriver, remove the two screws securing the factory sensor.
  4. Pull straight up to remove the sensor, it may require a bit of force due to the o-ring.

Installing COBB 4 Bar MAP Sensor 

  1. Insert the COBB 4-Bar MAP Sensor, being careful not to damage the o-ring.
  2. Use a 3mm hex key to install the provided screws with locking washers
  3. Plug in the connector, making sure to verify it is locked into position.

Calibration Data

Sensor calibration:

Multiplier = 14.504 psi (1.000 bar)

Offset = -7.252 psi (-0.500 bar)

Voltage Range = 0.5 to 4.5

Suggested DTC limits:

low: 0.25V

high: 4.75V


COBB Product Install Instructions for Subaru Vehicles 

Main Installation Instruction Repository for Subaru Parts

Calibration Map Notes for Subaru Vehicles

Link to Subaru Map Notes to see what map you should be on given the parts you've added

Contact Us:

COBB Customer Support

Web Support and Tech Articles: COBB Tuning Customer Support Center

Email: support@cobbtuning.com

Phone support available 9am to 6pm Monday-Thursday. 9am to 4pm Friday (CST)


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