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Home >> Isuzu >> 2003 >> Axiom Base, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Emission Systems & Sub-Systems >> EVAP Canister Purge Valve Solenoid Check >> Test Description

Test Description

Numbers below refer to the numbers in the Diagnostic Procedure:

  1. 1 -  Check to see if solenoid is open or closed. Solenoid is normally de-energized in this step.
  2. 2 -  This step checks to determine if the solenoid was open due to an electrical circuit problem or a defective solenoid.
  3. 3 -  This should normally energize the solenoid, opening the valve and allowing vacuum to drop (purge On).

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