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 THROTTLE POSITION SWITCH, IGNITION TIMING & IDLE SPEED
in ON-VEHICLE ADJUSTMENTS article.
IDLE SPEED
| Application |
Base Idle RPM |
Target Idle RPM |
| Altima |
600-700 |
650-750 |
| Frontier & Xterra |
| 2.4L |
700-800 |
750-850 |
| 3.3L |
650-750 |
700-800 |
| I35 & Maxima |
| A/T |
650-750 |
650-750 |
| M/T |
575-675 |
575-675 |
| Pathfinder & QX4 |
700-800 |
700-800 |
| Quest |
650-750 |
700-800 |
| Sentra |
| 1.8L |
| A/T |
800-900 |
800-900 |
| M/T |
625-725 |
600-700 |
| 2.5L |
750-850 |
750-850 |
IGNITION TIMING SPECIFICATIONS
| Application |
Degrees BTDC |
| Altima, I35, Maxima, Pathfinder & QX4 |
10-20 |
| Frontier & Xterra |
| 2.4L |
18-22 |
| 3.3L |
8-12 |
| Quest |
13-15 |
| Sentra |
| 1.8L |
4-14 |
| 2.5L |
10-20 |