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Home >> Chevrolet >> 1985 >> Camaro Base, 2.5 2, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - PFI >> Adjustments >> Minimum Idle Speed >> 1.8L 4-Cylinder

1.8L 4-Cylinder

  1. Disconnect PCV hose to cause a severe vacuum leak and substantial increase in idle speed. Wait 2 minutes and disconnect IAC electrical connector.
  2. Reconnect PCV hose. Set minimum idle rate to 675-725 RPM with automatic transmission, and 700-750 RPM with manual transmission. Reconnect IAC connector. IAC will reset when vehicle is driven over 45 MPH.
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