Idle Speed & Ignition Timing

1991 Nissan-Datsun 240SX LE, StandardSECTION 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 ADJUSTMENTS article in the ENGINE PERFORMANCE Section.

4-CYLINDER IDLE SPEED (RPM) (1)

Application (2) TPS Connected (2) TPS Disconnected
NX & Sentra
1.6L
Auto. Trans. 750-850 675-775
Man. Trans. 600-700 550-650
2.0L
Auto. Trans. 750-850 700-800
Man. Trans. 750-850 700-800
Pickup 750-850 700-800
Stanza 650-750 600-700
240SX 650-750 600-700
(1) Automatic transmission/transaxle in Neutral.
(2) See ADJUSTMENTS article.
V6 IDLE SPEED (RPM) (1)

Application (2) AAC Connected (2) AAC Disconnected
Maxima
Auto. Trans. 650-750 700
Man. Trans. 650-750 700
Pathfinder & Pickup
Auto. Trans. 700-800 700
Man. Trans. 700-800 700
300ZX
Auto. Trans.
Non-Turbo 720-820 720
Turbo 700-800 700
Man. Trans. 650-750 650
(1) Automatic transmission/transaxle in Neutral.
(2) See ADJUSTMENTS article.
4-CYLINDER IGNITION TIMING (Degrees BTDC @ RPM)

Application Man. Trans. (1) Auto. Trans.
NX & Sentra
1.6L 10@550-650 10@675-775
2.0L 15@700-800 15@700-800
Pickup 10@750-850 10@750-850
Stanza 15@650-750 15@650-750
240SX 20@600-700 20@600-700
(1) Automatic transmission/transaxle in Neutral.
V6 IGNITION TIMING (Degrees BTDC @ RPM)

Application Man. Trans. (1) Auto. Trans.
Maxima 15@700-800 15@700-800
Pathfinder & Pickup 15@700-800 15@700-800
300ZX
Non-Turbo 15@650-750 15@720-820
Turbo 15@650-750 15@700-800
(1) Automatic transmission/transaxle in Neutral.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.