1987 Toyota 4Runner SR5, 22-RTEFACTORY OEM SERVICE PROCEDURE

Airflow Meter

Turn ignition off. Disconnect wiring connector from airflow meter. Using an ohmmeter, measure resistance between each terminal. If resistance values do not meet specifications shown in table, replace airflow meter.

Fig 1: Measuring Airflow Meter Resistance
G74054Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
AIRFLOW METER RESISTANCE SPECIFICATIONS - 4 CYLINDER

Application Terminals Ohms
E2-THA
-4°F (20°C) 10,000-20,000
32°F (0°C) 4000-7000
68°F (20°C) 2000-3000
104°F (40°C) 900-1300
140°F (60°C) 400-700
E2-Vc 100-300
E1-Fc
Measuring Plate Fully Closed Infinity
Measuring Plate Other Than Closed 0
E2-Vs
Measuring Plate Fully Closed 20-400
Measuring Plate Fully Open 20-1200
AIRFLOW METER RESISTANCE SPECIFICATIONS - V6

Application Terminals Ohms
E2-THA
-4°F (20°C) 10,000-20,000
32°F (0°C) 4000-7000
68°F (20°C) 2000-3000
104°F (40°C) 900-1300
140°F (60°C) 400-700
E2-Vc 200-400
E1-Fc
Measuring Plate Fully Closed Infinity
Measuring Plate Other Than Closed 0
E2-Vs
Measuring Plate Fully Closed 200-600
Measuring Plate Fully Open 20-1200
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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