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Home >> Infiniti >> 2000 >> QX4 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Idle Speed & Ignition Timing
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Idle Speed & Ignition Timing

Ensure idle speed and ignition timing are set to specification. Improper setting of ignition timing and idle speed may cause driveability problems and/or false setting of trouble codes. For adjustment procedures, see ON-VEHICLE ADJUSTMENTS article.

IDLE SPEED

Application Base Idle RPM (1) (1) Target Idle RPM
Altima 600-700 650-750
Frontier & Xterra
4-Cylinder 700-800 750-850
V6 650-750 700-800
Maxima
A/T (2) 650-750
M/T (2) 575-675
Pathfinder 650-750 700-800
Quest 650-750 700-800
Sentra
1.8L
A/T (2) 800-900
M/T (2) 600-700
2.0L 700-800 750-850
(1) With transmission/transaxle in Neutral.
(2) Information not available from manufacturer.
IGNITION TIMING SPECIFICATIONS (1)

Application Degrees BTDC
Altima, Frontier & Xterra (4-Cyl.) 18-22
Sentra
1.8L 6-10
2.0L 13-17
V6 Models 13-17
(1) With transmission/transaxle in Neutral.