LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 1997 >> Sidekick JS, 4D Utility, Automatic >> Repair and Diagnosis >> Engine Performance >> Adjustment >> Engine Controls - Adjustments - 1.6L >> Idle Speed & Mixture >> Idle Speed
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Idle Speed

CAUTION: DO NOT  attempt to adjust throttle stop screw to adjust idle. Throttle stop screw is factory-set and is used as zero reference point for all other adjustments.
NOTE: DO NOT  adjust idle speed in areas above 8200 ft. elevation.
IDLE SPEED SPECIFICATIONS (1)

Application Idle RPM
A/C Off 750-850
A/C On 950-1050
(1) Transaxle or transmission in Neutral or Park.
IAC DUTY AT SPECIFIED IDLE SPEED (1)

Application (2) Percent
1.6L 50
(1) See IDLE SPEED SPECIFICATIONS  table.
(2) With A/C turned off (if equipped).
  1. Idle speed is controlled by IAC valve and should not require adjustment. If idle speed needs to be changed, start engine and allow it to reach normal 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. Ensure air cleaner and ducts are properly installed and air filter element is in good condition.
  2. Ensure ignition timing is correct. See IGNITION TIMING  table under IGNITION TIMING. Using a fused jumper wire, connect terminal "B" (diagnosis switch) to terminal "D" (ground) at test connector. See Figure . Attach a duty meter to duty output terminal "F" and ground terminal "D". Remove idle speed adjusting screw protective cap from top of throttle body. See Fig 1 . Turn idle speed adjusting screw to obtain correct idle RPM. See IDLE SPEED SPECIFICATIONS  and IAC DUTY AT SPECIFIED IDLE SPEED  tables.
  3. On vehicles equipped with A/C, turn A/C switch to ON position. With A/C operating correctly, verify idle is 950-1050 RPM. If idle speed is not within specification, check A/C ON signal circuit. After adjustments, remove service wire and reinstall protective cap on throttle body. Recheck idle speed.
Fig 1: Idle Speed Adjusting Screw
G96A09878Courtesy of SUZUKI OF AMERICA CORP.