1987 Nissan-Datsun Sentra BaseFACTORY OEM SERVICE PROCEDURE

Airflow Meter Self-Cleaning Control

This system is designed to heat the "hot wire" of the airflow meter after ignition switch is turned to the "OFF" position. This is to clean any foreign matter that may have adhered to it during operation. After the engine has stopped, the ECU sends a signal to heat the "hot wire" to 1832Β°F (1000Β°C) to burn off any foreign material under the following conditions: if engine reached a certain predetermined RPM, vehicle speed reached a minimum MPH, coolant temperature was between two preset standards and only when engine is stopped by ignition key (not stalled).

Factory Service Tools

Use the Manual With the Right Hardware

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

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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.

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