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Home >> Infiniti >> 1998 >> Q45 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Idle Speed & Ignition Timing >> Idle Speed
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Idle Speed

Ensure idle speed and ignition timing are set to specification. For adjustment procedures, see ADJUSTMENTS article.

IDLE SPEED & CO LEVEL

Application (1) Idle RPM CO Level
I30
A/T 650-750 (2)
M/T 575-675 (2)
Q45 600-700 (2)
(1) With transmission in Neutral and no electrical load on engine.
(2) See underhood emission decal.
IGNITION TIMING (Degrees BTDC @ Idle)

Application (1) Specification
I30 & Q45 13-17° BTDC
(1) With transmission in Neutral and no electrical load on engine.
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