Swift SOHC
- Idle speed is controlled by ECM using IAC valve and requires no adjustments under normal conditions. If conditions require idle speed to be adjusted, start engine and warm it to operating temperature. Turn all accessories off. Ensure all fuel and emission control system wire connectors and hoses are properly connected. Ensure accelerator cable has free-play, air cleaner and ducts are properly installed and air filter element is in good condition.
- Ensure ignition timing is correct. See IGNITION TIMING
table under IGNITION TIMING. Connect terminal "B" (diagnosis switch) to terminal "D" (ground) using a service wire. See Figure
. MIL (CHECK ENGINE light) should indicate Code 12. Attach duty meter to duty output terminal "F" and ground terminal "D". Remove idle speed adjusting screw cap from side of throttle body, just above throttle lever. Turn idle speed adjusting screw to obtain correct idle speed. Refer to the appropriate IDLE SPEED SPECIFICATIONS
table and/or the IAC DUTY AT SPECIFIED IDLE SPEED
table. On vehicles without A/C, remove service wire, reinstall protective cap to throttle body and recheck idle speed.
- On vehicles equipped with A/C, turn A/C switch to ON position and set fan switch to HIGH position. See Fig 1
. With A/C operating correctly, verify idle speed is 850-950 RPM. If adjustment is required, turn A/C Vacuum Switching Valve (VSV) adjusting screw as necessary. See IDLE SPEED SPECIFICATIONS
table. Remove service wire, reinstall protective cap to throttle body and recheck idle speed.
Courtesy of SUZUKI OF AMERICA CORP.