1987 Nissan-Datsun Sentra BaseFACTORY OEM SERVICE PROCEDURE

Test Preliminary Checks

NOTE: Prior to performing any self-diagnostics or engine related testing, perform all preliminary tests first. Set all adjustments to specifications listed on vehicle emissions decal.
  1. Check idle speed with automatic transmissions in "DRIVE" position. Set idle speed at middle engine speed (approximately 2000 rpm) on all models. On Maxima, 200SX, and 300ZX models, Green inspection light should flash 5 or more times during 10 seconds.
  2. On Pulsar models, while in Mode 2 of self-diagnostics, look for simultaneous flashes from Red and Green inspection lights.
  3. On Pathfinder and Pickup (VG30i), while in Mode 2 of self-diagnostics, Red and Green inspection lights should flash simultaneously 5 or more times during 10 seconds.
  4. On Pathfinder, Pickup (Z24i) and Van models, Red and Green inspection lights should flash simultaneously 7 or more times in 10 seconds. On Stanza and Stanza Wagon models, Red and Green inspection lights should flash simultaneously 9 or more times in 10 seconds.
  5. Perform idle speed switch test. Idle speed should increase to the amount specified in the IDLE SWITCH SPEED INCREASES chart when idle speed switch is turned from "OFF" to "ON" position. If idle is not as specified, adjust accordingly.
    IDLE SWITCH SPEED INCREASES

    Model Automatic "N" Position Manual RPM + or -
    Maxima 250 250 150
    Pulsar (1) (1) (1)
    Stanza 250 250 150
    Stanza Wagon 250 250 150
    200SX 250 250 150
    300ZX 250 250 150
    (1) "ON" position at Idle and "OFF" position when accelerator pedal is depressed.
  6. On all models, perform a test drive to evaluate the effectiveness of any adjustments that may have been made. On Pulsar, Maxima, 200SX and 300ZX models, perform a MODE 5 REAL TIME DIAGNOSIS during the test drive to determine if any additional problems exist. Write down any diagnostic codes which appear.
  7. On all models, perform a MODE 3 SELF-DIAGNOSIS test. Write down any diagnostic codes which appear during the mode 3 test. If the results of the test drive, MODE 5 REAL TIME DIAGNOSIS test and/or MODE 3 SELF-DIAGNOSIS test are unsatisfactory (codes are presented), refer to diagnostic reference charts. For distinct component problems (diagnostic codes), see applicable SYSTEM INSPECTION CHART. For driveability problems, see applicable DRIVEABILITY INSPECTION CHART.
  8. After all replacements and/or repairs are completed, test drive the vehicle. This will give you a chance to evaluate the vehicles performance after the diagnosis and repair procedure is completed.
Factory Service Tools

Use the Manual With the Right Hardware

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

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.