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Home >> Saab >> 1991 >> 900 Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Air Induction Systems >> Turbocharger >> Pressure Transducer

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. Measure resistance between transducer terminals (Black/White and Green/Red wires on mating connector). Resistance should be 8-13 ohms at atmospheric pressure.
  3. Increase pressure to about 14.5 psi (1.0 kg/cm2 ) and then let it drop to 8.7 psi (0.6 kg/cm2 ), while tapping lightly on pressure transducer bracket. Resistance should be 83-93 ohms at 8.7 psi (0.6 kg/cm2 ). If resistance is not as specified, replace pressure transducer.
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