Mass Air Flow Meter: Inspection: Inspection
WARNING: This page is about a different car, the 2010 Lexus LS 460L and 2010 Lexus LS 460. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
- Perform a visual check for any foreign matter on the platinum hot wire (heater) of the mass air flow meter shown in the illustration.
OK
There is no foreign material.
- Check the intake air temperature sensor (Built into the MAF meter).
- Measure the resistance according to the value(s) in the table below.
Standard resistance
Tester Connection Condition Specified Condition 5 (THA) - 4 (E2) -20°C (-4°F) 13.6 to 18.4 kΩ 20°C (68°F) 2.21 to 2.69 kΩ 60°C (140°F) 0.49 to 0.67 kΩ If the result is not as specified, replace the mass air flow meter sub-assembly.
- Measure the resistance according to the value(s) in the table below.
- Perform a visual check for any foreign matter on the platinum hot wire (heater) of the mass air flow meter shown in the illustration.