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Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Emission System) >> Secondary Air Injection (Air) Pump Inspection >> Discharging Pressure Inspection >> Without Using WDS Or Equivalent

Without Using WDS Or Equivalent

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the air hose between the AIR pump and AIR control valve at the AIR control valve side.
  2. Install the SST  on the AIR control side using tape to prevent air leakage.
    Fig 1: Installing Special Tool On AIR Control Side
    G01345847Courtesy of MAZDA MOTORS CORP.
  3. Start the engine, turn all electrical loads off, and idle the engine after completely warning it up.
  4. Connect the AIR pump relay terminal A to the ground, and operate the AIR pump.
    CAUTION:
    • When connecting the secondary air injection pump relay to the body ground, short the specified terminal, because shorting the wrong terminal may cause malfunctions.
    • Do not operate the secondary air injection pump for more than 1 min to avoid damaging the pump.
    • Stop the engine and wait for 1 hour or more after energizing the secondary air injection pump to allow it to cool down before operating it again.
  5. Verify that the discharging pressure of the AIR pump is within the specification.
    Fig 2: Locating Air Pump Relay
    G01345848Courtesy of MAZDA MOTORS CORP.
    • If not within the specification of the discharge pressure, inspect the following:
      • PCM terminal 40 voltage
      • AIR pump relay
    • If it is within the specification, inspect continuity for the AIR pump.

      Discharging pressure 

      13.7 kPa {0.14 kgf/cm 2  , 1.99 psi} or more