2004 Mazda 6 code P2227 and P1487

These codes are for the EGR boost sensor.

I would highly suggest going through and testing the system to find out what needs to be replaced as there are a number of things that could cause this. Most likely it is just clogged and can be cleaned.

However, you can also have a vacuum leak so here is a guide that will help find the leak during that part of the test.

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

Below you will find all the testing for both codes. Please run through this and let us know what you find with this.

Thanks