1987 Merkur XR4Ti AutomaticFACTORY OEM SERVICE PROCEDURE

Air Temperature Sensor

On models with air temperature sensor, turn ignition off. Disconnect electrical connector at airflow meter (break-out box terminals No. 25 and 46 on Merkur XR4Ti) and connect ohmmeter between terminals No. 6 and 27. If readings are not to specification, replace airflow meter.

TEMPERATURE/RESISTANCE RELATIONSHIP

Temperature (Ohms)
32°F (0°C) 5500-6100
68°F (20°C) 2000-3000
122°F (50°C) 760-970
178°F (50°C) 270-380
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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.