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Home >> Chevrolet >> 2004 >> Optra Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 1.4L DOHC - Repair Instructions >> Repair Instructions >> Manifold Absolute Pressure Sensor Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: View Of Manifold Absolute Pressure Sensor
    GM1348510Courtesy of GENERAL MOTORS CORP.
  1. Insert the MAP sensor into the mounting bracket.
    2. NOTE: Refer to Fastener Notice .
  2. Install the bolts through the MAP sensor and the bracket. Install the retaining nuts.

    Tighten:  Tighten the MAP sensor retaining bolts and nuts to 8 N.m (71 lb in)  .

  3. Install the MAP sensor and the mounting bracket to the firewall with the mounting bracket bolt.

    Tighten:  Tighten the MAP sensor mounting bracket bolt to 4 N.m (35 lb in)  .

  4. Connect the MAP sensor connector.
  5. Connect the vacuum hose to the MAP sensor.
  6. Connect the negative battery cable.
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