LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Engine Controls [System & Component Testing]) >> Emission Systems & Sub-Systems >> Fuel Evaporative System (Protege & Protege5) >> System Leak Inspection - Using Vacuum Pump

System Leak Inspection - Using Vacuum Pump

WARNING: This page is about a different car, the 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, 2003 Mazda MPV, and 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Whole System Inspection

  1. Disconnect vacuum hose between purge solenoid valve and catch tank from purge solenoid valve. See Figure.
  2. Connect hose on vacuum pump.
  3. Connect scan tool to DLC-2.
  4. Turn ignition on, engine off.
  5. Using scan tool, close Canister Drain Cut Valve (CDCV) using ON BOARD DEVICE CONTROL function.
    NOTE: CDCV is closed for 10 minutes unless any of following actions is done:
    • Engine is started.
    • Ignition is turned off.
    • Fuel Tank Pressure (FTP) sensor signal exceeds 1.9 in. Hg (6.43 kPa).
  6. Apply 1.7 kPa vacuum and monitor FTP output voltage.
  7. Verify voltage holds at specified readings for a minimum of 2 minutes.
    • If voltage does not hold, inspect fuel tank pressure sensor.
    • If FTP sensor is okay, perform "Inspection From Charcoal Canister To Fuel Tank".

Inspection From Charcoal Canister To Fuel Tank

  1. Check for loose and incorrectly installed hoses between charcoal canister and fuel tank. See Figure, Figure & Figure .
  2. Disconnect vacuum hose between charcoal canister and fuel tank from charcoal canister.
  3. Connect hose to vacuum pump.
  4. Apply 1.7 kPa vacuum.
  5. Verify that vacuum holds at specified readings for a minimum of 2 minutes.
    • If vacuum does not hold, check fuel tank, related vacuum hoses and fuel-filler cap.
    • If fuel tank, related vacuum hoses and fuel-filler cap are okay, perform "Inspection From Charcoal Canister To Purge Solenoid Valve".

Inspection From Charcoal Canister To Purge Solenoid Valve

  1. Check for loose and incorrectly installed hoses between charcoal canister and purge solenoid valve. See Figure-Figure .
  2. Disconnect vacuum hose between charcoal canister and catch tank from charcoal canister.
  3. Connect hose to vacuum pump.
  4. Apply 1.0 in. Hg vacuum. Vacuum should hold at specified reading for a minimum of 2 minutes. If vacuum does not hold, inspect following:
scientia non olet · About LEMON Manuals