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Home >> Saab >> 1990 >> 9000 CD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Air Induction Systems (Turbo) >> Pressure Transducer
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Pressure Transducer

  1. Remove panel underneath dashboard (driver side). Unplug electrical connector from pressure transducer. Connect vacuum pump and pressure gauge to pressure transducer hose.
  2. Connect ohmmeter between Black/White and Green/Red wires of pressure transducer connector. Measure resistance. Resistance should be 8-13 ohms at atmospheric pressure.
  3. Increase pressure to approximately 14.5 psi (10.2 kg/cm2 ) and then let it drop to 8.7 psi (6.1 kg/cm2 ), while tapping lightly on pressure transducer bracket. Resistance should be 83-93 ohms at 8.7 psi (.61 kg/cm2 ). If readings are not as specified, replace pressure transducer.