Idle Speed & Ignition Timing
Ensure idle speed and ignition timing are set to specification. See IDLE SPEED SPECIFICATIONS table. For adjustment procedures, see ADJUSTMENTS article is this section.
IDLE SPEED SPECIFICATIONS
| Application | (1) Idle RPM | ||
|---|---|---|---|
| 190E 2.6L & 300E 2.6L | 650-750 | ||
| 300 Series 3.0L | 600-700 | ||
| 420 & 560 Series | 650 | ||
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