1993 Suzuki Sidekick JS, 2D Utility, AutomaticFACTORY OEM SERVICE PROCEDURE

Idle Speed & Ignition Timing

Ensure idle speed and base ignition timing are set to specification. Refer to the IDLE SPEED SPECIFICATIONS  table and the IGNITION TIMING  table. If necessary, see ADJUSTMENTS article.

IDLE SPEED SPECIFICATIONS (1)

Application Idle RPM
Samurai
With A/C Off 750-850
With A/C On (2) 950-1050
Sidekick
With A/C Off 750-850
With A/C On (3) 950-1050
Swift
DOHC
With A/C Off 800-900
With A/C On (2) 850-950
SOHC
With A/C Off
Auto. Transaxle 800-900
Man. Transaxle 700-800
With A/C On
Auto. Transaxle (4) (2) 800-900
Man. Transaxle (4) (2) 700-800
Auto. & Man. Transaxles (5) 850-950
(1) Transaxle or transmission in Neutral or Park.
(2) A/C idle speed is adjusted by rotating adjusting screw on A/C Vacuum Switching Valve (VSV).
(3) With auto. transmission in gear, idle RPM is 750-850.
(4) When ECM part number ends with "0".
(5) When ECM part number ends with number other than "0".
IGNITION TIMING (Degrees BTDC @ RPM)

Application Man. Trans. Auto. Trans.
Samurai (1) 7-9 @ 800 Not Used
Sidekick
MPI (1) 4-6 @ 800 (1) 4-6 @ 800
TBI (1) 7-9 @ 800 (1) 7-9 @ 800
Swift
DOHC (2) 5-7 @ 800-900 (2) 5-7 @ 800-900
SOHC (2) 4-6 @ 750 (2) 4-6 @ 850
(1) With jumper wire installed between "C" and "D" terminals of monitor coupler connector, located near battery.
(2) With jumper wire installed between "D" and "E" terminals of monitor coupler connector, located near ignition coil.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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