1991 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Model Coverage

MODEL COVERAGE (1)

Model Body Engine ID Fuel & Ignition (2)
Maxima J 3.0L V6 (VG30E) H SFI; Optical (3)
NX, Sentra B 1.6L (GA16DE) E SFI; Optical
" " 2.0L (SR20DE) G SFI; Optical (3)
Pathfinder & Pickup D 2.4L (KA24E) S SFI; Optical
" " 3.0L V6 (VG30E) H SFI; Optical (3)
Stanza U 2.4L (KA24E) F SFI; Optical
240SX S 2.4L (KA24DE) M SFI; Optical
300ZX Z 3.0L V6 (VG30DE) R SFI; Optical DIS (3)
300ZX Turbo Z 3.0L V6 (VG30DETT) (4) C SFI; Optical DIS (3)
(1) Engine code is located on left side (4-cylinder) or right side (V6) of cylinder block, at cylinder head mating surface.
(2) Timing is controlled by Electronic Control Unit (ECU).
(3) System utilizes a detonation (knock) sensor for ignition detonation input to ECU.
(4) VG30DETT engine has twin turbochargers and intercoolers.
Factory Service Tools

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When to See a Mechanic

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

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

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