i took my car to the dealer p0102 code

This code is telling you there is an issue with the mass air flow sensor.

However, this could just be a vacuum leak which is most likely what they found with the intake gaskets.

So, the way to test this to find what they did is to follow this guide:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

However, this could be a MAF sensor issue itself so we will need to run through the voltage testing and check for shorts to find out if the voltage is the issue.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-replace-a-mass-air-flow-sensor-maf

Please see the attached info below. If there are no vacuum leaks, then the most likely issue is the sensor. However, it could also be wiring or a PCM.

Please run through this info and let us know what you find with this, and we can go from there.

Thanks