Air Temperature Sensor
- With ignition "OFF", disconnect electrical connector at air flow meter. Connect an ohmmeter between terminals 30 and 33 (280ZX Turbo), terminals E2 and THA (Toyota) or terminals 25 and 34 (all other models). Measure and record air temperature.
- Ohmmeter readings should be as shown in chart. If not, check insulation resistance with ohmmeter between terminal 30 (280ZX Turbo), terminal THA (Toyota) or terminal 25 (all other models) and ground (use air flow meter as ground).
- Infinity ohmmeter reading should be obtained. If values are not as specified, replace electrical harness or air flow meter assembly, as required.TEMPERATURE/RESISTANCE RELATIONSHIP
Temperature °F (°C) Resistance (Ohms) Below 68 (20) Above 2900 68 (20) 2100-2900 Above 68 (20) Below 2100