2000 Suzuki Swift GL, AutomaticFACTORY OEM SERVICE PROCEDURE

Idle Speed & Ignition Timing

Ensure idle speed and base ignition timing are set to specification. See IDLE SPEED SPECIFICATIONS  and IGNITION TIMING  tables. If necessary, see ON-VEHICLE ADJUSTMENTS article for adjustment procedures. If scan tool is available, check for correct IAC duty. See IAC DUTY AT SPECIFIED IDLE SPEED  table.

IDLE SPEED SPECIFICATIONS (1)

Application Idle RPM
Esteem
A/C Off
Auto. Transaxle 700-800
Man. Transaxle 650-750
A/C On 800-900
Grand Vitara
A/C Off 700-800
A/C On 750-850
Swift (2)
Vitara
A/C Off 700-800
A/C On 950-1050
1.6L 800-900
2.0L 750-850
(1) Transaxle or transmission in Neutral or Park.
(2) Information is not available from manufacturer.
IAC DUTY AT SPECIFIED IDLE SPEED(1)

Application (2) Percent
Esteem 1.6L (Low Altitude) 3-30
Esteem 1.6L (High Altitude) 3-40
Esteem 1.8L 10-50
Grand Vitara 2.5L V6 10-50
Swift (3)
Vitara 1.6L & 2.0L 2-30
(1) See IDLE SPEED SPECIFICATIONS  table.
(2) Engine at normal operating temperature with A/C off (if equipped).
(3) Information not available from manufacturer.
IGNITION TIMING (Degrees BTDC @ RPM) (1)

Application Timing Setting
Esteem (2) 2-8 @ 750-850
Grand Vitara (3) (4) 4-6 @ 750-850
Swift (4) 4-6 @ 800-900
Vitara (4) 4-6 @ 750-850
(1) See ON-VEHICLE ADJUSTMENTS article for adjustment procedures.
(2) With jumper wire installed between terminals "D" and "E" of test connector located in relay box. See Fig 1 .
(3) Adjust CMP sensor to change ignition timing.
(4) Suzuki scan tool (Tech 1) connected to DLC required to check timing. See Fig 2 .
NOTE: Ensure ignition timing advances as engine speed increases.
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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