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All Other Models

  1. Start engine and check that it idles properly. Pinch off hose to vacuum switch.
  2. Gradually increase engine speed to 2000 RPM (Land Cruiser), 2300 RPM (Calif. Tercel primary), 2500 RPM (Corolla), or 3000 RPM (all other models). Engine should misfire slightly for last 500 RPM as speed is raised.
    Fig 1: Deceleration Fuel Cut System (Calif. Tercel)
    G09323364Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE: Perform this procedure quickly to avoid overheating and damage to converter.
  3. Release hose and raise engine speed, checking to see that engine runs smoothly.
  4. Unplug wiring connector to solenoid valve. Engine should now idle roughly. If this responds as indicated, system is operating normally.
    Fig 2: Deceleration Fuel Cut System (All Other Models)
    G09323365Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    DECELERATION FUEL CUT OPERATION

    Application Above Engine RPM Above Vacuum In. Hg
    Celica, Corona & Pickup 2590 16.75
    Corolla 2390 16.75
    Land Cruiser 1800 14.00
    Tercel Calif. (1) 2290 16.75
      Federal   8.85
    (1) Primary system only.
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