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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 102 (Engine Controls - Self-Diagnostics - 3.5L) >> Diagnostic Tests >> DTC P0440: EVAP System >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue and 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step number in the diagnostic procedures.

  1. 4

    This step is used to verify if a leak is present.

  2. 6

    This step verifies proper operation of the Fuel Tank Pressure (FTP) sensor.

  3. 9

    This step tests the EVAP canister purge valve for a restriction or blockage.
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