Hi there,
This code is usually resolved when you replace the intake air temp sensor. On the older 240s the sensor is a 2 wire sensor before the air cleaner. On the newer models it's part of the mass air flow sensor. You can tell based on the number of wires to the maf sensor. If it is a 5 wire sensor, then the IAT is part of that sensor.
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This code is usually resolved when you replace the intake air temp sensor. On the older 240s the sensor is a 2 wire sensor before the air cleaner. On the newer models it's part of the mass air flow sensor. You can tell based on the number of wires to the maf sensor. If it is a 5 wire sensor, then the IAT is part of that sensor.
More...