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Home >> Toyota >> 1985 >> Van Base, Van Cargo, Standard >> Repair and Diagnosis >> Engine Performance >> System >> ECS CEC System >> System Testing >> Fuel Cut Deceleration System
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Fuel Cut Deceleration System

  1. Connect tachometer to engine. Start and warm engine to normal operating temperature.
  2. Disconnect wiring connector from throttle position sensor. Using a jumper wire, short-circuit terminals TL and IDL on wiring connector.
  3. Slowly raise engine speed and watch tachometer. Tachometer fluctuation on Vans should be between 2200 RPM-1800 RPM. If not check throttle position sensor and ECU.
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