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Home >> Isuzu >> 1985 >> I-Mark 2D Hatchback, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Evaporation System >> Component Testing >> Canister Purge Control Valve >> Except Impulse

Except Impulse

  1. Remove canister from vehicle. Apply 7.5 psi air pressure to port marked "VC". Air should not leak from diaphragm.
  2. Apply and maintain 15 in. Hg vacuum to port marked "Purge". Gradually apply vacuum to "VC" port. Purge valve should open when 7.1-8.7 in. Hg is applied to port "VC". Replace valve if it does not operate as outlined.
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