1990 Mitsubishi Montero Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Inspection Using Multi-Use Tester

See COMPONENTS INSPECTION PROCEDURE USING MULTI-USE TESTERΒ  . For normal condition, see Fig 1 .

Fig 1: Oxygen Sensor Inspection Using Multi-Use Tester
G00358350Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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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.