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Home >> Audi >> 1987 >> 5000 CS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> BOSCH Cis-E System >> Adjustments >> Throttle Valve Housing >> System Pressure

System Pressure

  1. Check and note existing pressure. Remove pressure regulating valve from fuel distributor. See Fig 1 .
  2. Adjust pressure by changing shims in shim stack. Add shims to raise system pressure. Remove shims to lower system pressure.
  3. A shim change of .020" (.5 mm) will change system pressure approximately 4.2 psi. (.3 kg/cm2 ). Ensure any replacement shims are identical in diameter to existing shims.
Fig 1: Adjusting System Pressure
G61271
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