Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Isuzu >> 1994 >> Pickup 2D Pickup Extra Cab >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - CARBURETED >> Emission Systems & Sub-Systems >> Mixture Control Valve (MCV) >> Inspection

Mixture Control Valve (MCV): Inspection

  1. Disconnect large rubber hose (1  ) connecting MCV and intake manifold. See Fig 1 . Plug intake manifold side.
  2. If MCV is functioning properly, secondary air should continue to blow from MCV for a few seconds when throttle is opened completely and released quickly. If secondary air continues to blow out for more than 5 seconds, replace mixture control valve.
Fig 1: Cross-Sectional View Of Mixture Control Valve
G122347Courtesy of ISUZU MOTOR CO.
scientia non olet · About Mike's Workshop Manuals