About the Intake Air Temperature Problem.

Hello, I had a traction problem with my car for a long time. Valve adjustment, o2 sensor change, cleaning of other sensors and injectors, filter change, spark plug change. But when I connect the elm327 and check the intake air temperature, the air temperature reaches 80 degrees. When the outdoor temperature is 20 degrees, the intake air temperature makes 4 times difference. I've checked all the connections that air passes through. No cracks or loose connections. Is it normal for the intake air to get this hot?