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Idle Speed & Ignition Timing

WARNING: This page is about a different car, the 2002 Suzuki XL-7, 2002 Suzuki Vitara, 2002 Suzuki Grand Vitara, 2002 Suzuki Esteem, and 2002 Suzuki Aerio. However, it is still accessible from the selected car via links, so may be relevant.

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
Aerio
A/C Off 700-800
A/C On
Automatic 700-800
Manual 800-900
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
Vitara
A/C Off 700-800
A/C On
1.6L 800-900
2.0L 750-850
XL-7
A/C Off 640-740
A/C On 700-800
(1) Transaxle or transmission in Neutral or Park.
IAC DUTY AT SPECIFIED IDLE SPEED(1)

Application (2) Percent
Aerio 35-45
Esteem 1.6L (Low Altitude) 3-30
Esteem 1.6L (High Altitude) 3-40
Esteem 1.8L 10-50
Grand Vitara 10-50
Vitara 1.6L & 2.0L 2-30
XL-7 5-40
(1) See IDLE SPEED SPECIFICATIONS  table.
(2) Engine at normal operating temperature with A/C off (if equipped).
IGNITION TIMING (Degrees BTDC @ RPM) (1)

Application Timing Setting
Aerio (3) (4) 4-6 @ 700-800
Esteem (2) 2-8 @ 750-850
Grand Vitara (3) (4) 4-6 @ 750-850
Vitara (4) 4-6 @ 750-850
XL-7 (3) (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 connected to DLC required to check timing. See Fig 2.
NOTE: Ensure ignition timing advances as engine speed increases.
Fig 1: Identifying Test Connector Terminals (Esteem)
G96F09866Courtesy of SUZUKI OF AMERICA CORP.
Fig 2: Identifying Suzuki Scan Tool Hookup To Data Link Connector
G99I51076Courtesy of SUZUKI OF AMERICA CORP.
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