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For 1990-2009 cars only

Boost Sensor Replacement Federal Emissions

Removal Procedure


    Object Number: 740438  Size: SH
  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  2. Disconnect the boost sensor electrical connector (2).
  3. Remove the boost sensor bracket nut (4).
  4. Lift the coolant tube (1) off of the stud and move it out of the way.

  5. Object Number: 740442  Size: SH
  6. Remove the boost sensor (2) with bracket (1).
  7. Remove the sensor from the bracket.
  8. Inspect the boost sensor seal for damage, replace as necessary.

Installation Procedure


    Object Number: 740442  Size: SH
  1. Position the sensor (2) onto the bracket (1).
  2. Install the bracket (with sensor) over the stud.

  3. Object Number: 740438  Size: SH
  4. Position the coolant tube (1) over the stud.
  5. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  6. Install the boost sensor bracket nut (4).
  7. Tighten
    Tighten the nut to 9 N·m (80 lb in).

  8. Connect the boost sensor electrical connector (2).
  9. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .

Boost Sensor Replacement California Emissions

Removal Procedure


    Object Number: 813243  Size: SH
  1. Loosen the outlet duct clamp at the upper intake manifold cover.
  2. Remove the upper intake manifold cover from the outlet duct.
  3. Remove the upper intake manifold cover.

  4. Object Number: 788842  Size: SH
  5. Disconnect the boost sensor electrical connector (1).
  6. Remove the boost sensor bracket bolt (4).
  7. Disconnect the vacuum line from the sensor.
  8. Remove the boost sensor and bracket.
  9. Remove the bracket from the sensor.
  10. Inspect the boost sensor seal for damage, replace as necessary.

Installation Procedure


    Object Number: 788842  Size: SH
  1. Install the sensor to the bracket.
  2. Install the bracket (with sensor).
  3. Connect the vacuum line to the sensor.
  4. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the boost sensor bracket bolt (4).
  6. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  7. Connect the boost sensor electrical connector (1).

  8. Object Number: 813243  Size: SH
  9. Install the upper intake manifold cover.
  10. Install the upper intake manifold cover to the outlet duct.
  11. Tighten the outlet duct clamp at the upper intake manifold cover.
  12. Tighten
    Tighten the clamp to 6 N·m (53 lb in).