IGNITION TIMING

1999 NISSAN FRONTIER
134,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
Avatar
MARTWEIN
  • MEMBER
  • 16 POSTS
I have a 2.4L. I am wanting to check and adjust timing if needed on my truck. I can't find the timing indicator tab. I have looked all around the crankshaft pulley. How am I missing it? If someone could tell me where it is located, or have a diagram it would be greatly appreciated!

Thanks,

Mark
Mar 7, 2014 at 6:47 PM
Advertisement
Avatar
OBXAUTOMEDIC
  • CERTIFIED EXPERT
  • 3,711 POSTS
Hello,

Start engine and warm to normal operating temperature. Ensure idle speed is less than 1000 RPM. Run engine at 2000 RPM under no load for 2 minutes. Check for Diagnostic Trouble Codes (DTCs).

If any DTCs are present, perform diagnosis for DTC(s). See appropriate SELF-DIAGNOSTICS article. If no DTCs are present, run engine at 2000 RPM under no load for 2 minutes. Release throttle. Increase engine speed to 2000 RPM, 2 or 3 times, then allow engine to idle for one minute.

Turn ignition off. Disconnect Throttle Position (TP) sensor harness connector. Start engine and increase engine speed to 2000 RPM 2 or 3 times. Release throttle. Check ignition timing.

On all models except Maxima, if ignition timing is incorrect, loosen hold-down bolt and turn distributor to adjust ignition timing. On Maxima, ignition timing is not adjustable. If ignition timing is incorrect, check CMP sensor and both CKP sensors.

Altima & Frontier (4-Cyl.) 18-22 degrees BTDC

Base Idle with tranny in neutral should be 700 - 800

Target Idle with tranny in neutral is 750 - 850
Image (Click to enlarge)
Attached Media
Mar 8, 2014 at 6:49 AM