FixVault

Idle Speed

  1. Turn off all accessories. Place automatic transmission in Park or manual transmission in Neutral. Set parking brake. Connect tachometer to engine. Warm engine to normal operating temperature. Connect a jumper wire between single-wire STI test connector (Yellow wire on Capri; Yellow/Green wire on Festiva) and ground. See Figure.
  2. Locate Idle Speed Control By-Pass Air (ISC-BPA) valve on intake manifold. Remove cap, and adjust idle speed to specification by turning idle air adjust screw on ISC-BPA valve. See Fig 1. See IDLE SPEED SPECIFICATIONS table. Remove jumper wire.
IDLE SPEED SPECIFICATIONS

Application Auto. Trans. Man. Trans.
1.3L 830-870 680-720
1.6L 800-900 800-900
Fig 1: Locating Idle Air Adjust Screw
G91G16432Courtesy of FORD MOTOR CO.