SYS.OK|MANUAL.DBâ—Ź LIVE
HOMESERVICE MANUALSNISSAN-DATSUN2004ALTIMA S, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEM - 2.5LDTC P0442: EVAP CONTROL SYSTEMDIAGNOSTIC PROCEDURE
2004 Nissan-Datsun Altima S, Automatic

Diagnostic Procedure

2004 Nissan-Datsun Altima S, AutomaticSECTION Diagnostic Procedure
  1. CHECK FUEL FILLER CAP DESIGN 
    1. Turn ignition switch OFF.
    2. Check for genuine NISSAN fuel filler cap design.

    OK or NG

    1. OK : GO TO 2.
    2. NG : Replace with genuine NISSAN fuel filler cap.
      Fig 1: Identifying NISSAN Fuel Filler Cap
      G02884451Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK FUEL FILLER CAP INSTALLATION 

    Check that the cap is tightened properly by rotating the cap clockwise.

    OK or NG

    1. OK : GO TO 3.
    2. NG :
      1. Open fuel filler cap, then clean cap and fuel filler neck threads using air blower.
      2. Retighten until reteaching sound is heard.
  3. CHECK FUEL FILLER CAP FUNCTION 

    Check for air releasing sound while opening the fuel filler cap.

    OK or NG

    1. OK : GO TO  5.
    2. NG : GO TO 4.
  4. CHECK FUEL TANK VACUUM RELIEF VALVE 

    Refer to "FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FULLER CAP) ".

    OK or NG

    1. OK : GO TO 5.
    2. NG : Replace fuel filler cap with a genuine one.
  5. INSTALL THE PRESSURE PUMP 

    To locate the EVAP leak, install EVAP service port adapter and pressure pump to EVAP service port securely. For the location of EVAP service port, refer to "EVAPORATIVE EMISSION LINE DRAWING ".

    NOTE: Improper installation of the EVAP service port adapter to the EVAP service port may cause leaking.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.