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Home >> Lexus >> 2000 >> SC 400 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Engine Sensors & Switches >> Variable Valve Timing Sensor >> GS400
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Variable Valve Timing Sensor: GS400

  1. Variable Valve Timing (VVT) sensors are located on top of engine and are mounted on the intake side of each cylinder head. To access left VVT sensor, remove engine cover. Disconnect engine wire protector from upper intake manifold and camshaft bearing cap. Disconnect VVT sensor 2-pin connector with Green and Red wires. To access right VVT sensor, remove engine cover. Remove intake air connector pipe. Disconnect VVT sensor 2-pin connector with Yellow and Blue wires.
  2. Measure resistance between VVT sensor terminals. Replace sensor if resistance is not as specified. See VARIABLE VALVE TIMING SENSOR RESISTANCE  table.
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