ENGINE COMPRESSION
Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed (on dual plugs, remove exhaust side only) and throttle wide open.
VALVE CLEARANCE
Note. All engines, except KA24DE and GA16DE, are equipped with hydraulic lifters. Adjustments are not required.
| Application | Hot - In. (mm) |
|---|
| Altima & 240SX (KA24DE Engine) |
| Intake | .012-.015 (.30-.38) |
| Exhaust | .013-.016 (.33-.41) |
| NX 1.6L & Sentra 1.6L (GA16DE Engine) |
| Intake | .008-.019 (.21-.49) |
| Exhaust | .012-.023 (.30-.58) |
VALVE CLEARANCE SPECIFICATIONS
IGNITION COIL RESISTANCE - 4-CYLINDER
| Application | Primary | Secondary |
|---|
| Altima & 240SX | 1.0 | 10,000 |
| NX & Sentra |
| 1.6L | 0.9 | 13,000 |
| 2.0L | 1.0 | 10,000 |
| Pickup | 0.7 | (1) |
| (1) Secondary resistance cannot be read on Pickup. |
| (1) | Secondary resistance cannot be read on Pickup. |
IGNITION COIL RESISTANCE - 4-CYLINDER (Ohms @ 68°F (20°C))
IGNITION COIL RESISTANCE - V6
| Application | Primary | Secondary |
|---|
| Maxima |
| VG30E | 1.0 | 8200-12,400 |
| VE30DE | 0.8 | Infinite |
| Pathfinder, Pickup & Quest | 1.0 | 10,000 |
| 300ZX | 0.7 | (1) |
| (1) Information not available at time of publication. |
| (1) | Information not available at time of publication. |
IGNITION COIL RESISTANCE - V6 (Ohms @ 68°F (20°C))
HIGH TENSION WIRE RESISTANCE
| Application (1) | Ohms |
|---|
| Plug Wires | 30,000 Maximum |
| Coil Wire | 7000 Maximum |
| (1) Not applicable to Distributorless Ignition Systems (DIS). |
| (1) | Not applicable to Distributorless Ignition Systems (DIS). |
HIGH TENSION WIRE RESISTANCE
IGNITION TIMING
Note. For ignition timing adjustment procedures, see information in ADJUSTMENTS article.
IGNITION TIMING - 4-CYLINDER
| Application | Man. Trans. | (1) Auto. Trans. |
|---|
| Altima & 240SX | 18-22 @ 700-800 | 18-22 @ 700-800 |
| NX & Sentra |
| 1.6L | 8-12 @ 600-700 | 8-12 @ 800-900 |
| 2.0L | 13-17 @ 800-900 | 13-17 @ 800-900 |
| Pickup | 8-12 @ 750-850 | 8-12 @ 750-850 |
| (1) Automatic transmission/transaxle in Neutral. |
| (1) | Automatic transmission/transaxle in Neutral. |
IGNITION TIMING - 4-CYLINDER (Degrees BTDC @ RPM)
IGNITION TIMING - V6
| Application | Man. Trans. | (1) Auto. Trans. |
|---|
| Maxima | 13-17 @ 700-800 | 13-17 @ 700-800 |
| Pathfinder | 13-17 @ 700-800 | 13-17 @ 700-800 |
| Pickup | 13-17 @ 700-800 | 13-17 @ 700-800 |
| Quest | 13-17 @ 700-800 | 13-17 @ 700-800 |
| 300ZX |
| Non-Turbo | 13-17 @ 650-750 | 13-17 @ 720-820 |
| Turbo | 13-17 @ 650-750 | 13-17 @ 700-800 |
| (1) Automatic transmission/transaxle in Neutral. |
| (1) | Automatic transmission/transaxle in Neutral. |
IGNITION TIMING - V6 (Degrees BTDC @ RPM)
FUEL PUMP
| Application | At Idle W/O Vacuum psi (kg/cm 2 ) | At Idle W/ Vacuum psi (kg/cm 2 ) |
|---|
| Altima | 43 (3.0) | 34 (2.4) |
| Maxima | 44 (3.1) | 36 (2.5) |
| NX & Sentra | 43 (3.0) | 36 (2.5) |
| Pathfinder | 43 (3.0) | 34 (2.4) |
| Pickup | 43 (3.0) | 33 (2.3) |
| Quest | 43 (3.0) | 34 (2.4) |
| 240SX | 43 (3.0) | 34 (2.4) |
| 300ZX | 43 (3.0) | 36 (2.5) |
INJECTOR RESISTANCE
| Application | Ohms |
|---|
| Altima | (1) 11 |
| Maxima, Pathfinder, Quest & 300ZX | 10-14 |
| NX & Sentra |
| 1.6L | 10 |
| 2.0L | 10-14 |
| Pickup |
| 4-Cylinder | 10-15 |
| V6 | 10-14 |
| 240SX | 11 |
| (1) Value given is approximate. |
| (1) | Value given is approximate. |
INJECTOR RESISTANCE SPECIFICATIONS
IDLE SPEED & MIXTURE
Note. For idle speed and mixture adjustment procedures, see the ADJUSTMENTS article.
IDLE SPEED & CO LEVEL - 4-CYLINDER
| Application | (1) Idle RPM | (2) Idle RPM | (3) Maximum % CO Level |
|---|
| Altima | (4) 650-750 | (4) 600-700 | 5.0 |
| NX & Sentra |
| 1.6L |
| A/T | (4) 750-850 | (4) 675-775 | 7.0 |
| M/T | 600-700 | 550-650 | 7.0 |
| 2.0L | (4) 750-850 | (4) 700-800 | 10.0 |
| Pickup | (4) 750-850 | (4) 700-800 | 5.0 |
| 240SX | (4) 650-750 | (4) 600-700 | 7.0 |
| (1) With throttle position sensor connected. (2) With throttle position sensor disconnected. (3) Measured in Self-Diagnostic Mode II. (4) Automatic transmission/transaxle in Neutral. |
| (1) | With throttle position sensor connected. |
| (2) | With throttle position sensor disconnected. |
| (3) | Measured in Self-Diagnostic Mode II. |
| (4) | Automatic transmission/transaxle in Neutral. |
IDLE SPEED & CO LEVEL - 4-CYLINDER
IDLE SPEED & CO LEVEL - V6
| Application | (1) Idle RPM | (2) Idle RPM | (3) % CO Level |
|---|
| Maxima |
| VG30E | (4) 650-750 | (4) 700 | 0.2-8.0 |
| VE30DE | (4) 650-750 | (4) 650-750 | 0.2-8.0 |
| Pathfinder | (4) 700-800 | (4) 700 | 0.2-8.0 |
| Pickup | (4) 700-800 | (4) 700 | 0.2-8.0 |
| Quest | (4) 650-750 | (4) 700-800 | 0.2-8.0 |
| 300ZX |
| A/T |
| Non-Turbo | (4) 720-820 | (4) 720 | 0.2-8.0 |
| Turbo | (4) 700-800 | (4) 700 | 0.2-8.0 |
| M/T | 650-750 | 650 | 0.2-8.0 |
| (1) With Auxiliary Air Control (AAC) valve connected. (2) With Auxiliary Air Control (AAC) valve disconnected. (3) Measured in Self-Diagnostic Mode II. (4) Automatic transmission/transaxle in Neutral. |
| (1) | With Auxiliary Air Control (AAC) valve connected. |
| (2) | With Auxiliary Air Control (AAC) valve disconnected. |
| (3) | Measured in Self-Diagnostic Mode II. |
| (4) | Automatic transmission/transaxle in Neutral. |
IDLE SPEED & CO LEVEL - V6
THROTTLE POSITION SENSOR
For adjustment specifications, see appropriate adjustment procedures in ADJUSTMENTS article.
