Idle Speed & Ignition Timing
WARNING: This page is about a different car, the 2003 Suzuki XL-7, 2003 Suzuki Vitara, 2003 Suzuki Grand Vitara, and 2003 Suzuki Aerio. However, it is still accessible from the selected car via links, so may be relevant.
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:
Idle speed is adjustable only on Aerio model.
NOTE:
On all models, Suzuki scan tool is used to disable computer and check base timing. Timing is adjustable on all models, if timing is out of specification, check system related parts and readjust timing.
NOTE:
Ensure ignition timing advances as engine speed increases.
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
| Application | (1) Idle RPM | ||||
|---|---|---|---|---|---|
| Aerio | |||||
| A/C Off | 700-800 | ||||
| A/C On | |||||
| A/T | 700-800 | ||||
| M/T | 800-900 | ||||
| Grand Vitara | |||||
| A/C Off | 700-800 | ||||
| A/C On | 750-850 | ||||
| Vitara | |||||
| A/C Off | 700-800 | ||||
| A/C On | 750-850 | ||||
| XL-7 | |||||
| A/C Off | 640-740 | ||||
| A/C On | 700-800 | ||||
|
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IAC DUTY AT SPECIFIED IDLE SPEED
| Application | (1)(2) Percent | ||||
|---|---|---|---|---|---|
| Aerio | 35-45 | ||||
| Grand Vitara | 10-50 | ||||
| Vitara | 2-30 | ||||
| XL-7 | 5-40 | ||||
|
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IGNITION TIMING (Degrees BTDC @ RPM)
| Application | (1) Timing Setting | ||||||
|---|---|---|---|---|---|---|---|
| Aerio (2) | (3) 4-6 @ 700-800 | ||||||
| Grand Vitara (2) | (3) 4-6 @ 750-850 | ||||||
| Vitara | (3) 4-6 @ 750-850 | ||||||
| XL-7 (2) | (3) 4-6 @ 750-850 | ||||||
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